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From construction to capacity, we reviewed 131 real specs & features on the DEWALT DCF850B. Spoiler: general information, power & motor, battery & charging & chuck & drive system are a big part of the story.
A fast snapshot of the DEWALT DCF850B, covering its standout specification and what you can expect right out of the box.
DEWALT DCF850B
The DEWALT DCF850B ATOMIC 20V MAX 1/4 in. 3-Speed Impact Driver is ultra-compact at under 4 inches in length. Despite its size, the brushless motor pumps out 1,825 in-lbs of torque, making it perfect for maneuvering in difficult-to-reach spots.
Specifications & Facts
131
Specs measured. Drama avoided.
From torque to tech, we reviewed the DEWALT DCF850B based on 131 specs you’ll actually care about — especially core details like general information, power & motor, battery & charging & chuck & drive system.
General Information
12
DEWALT DCF850B
Motor Type
What type of motor does it use?
0
DEWALT DCF850B
0
Votes
Brushless
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Brushless denotes the motor type, providing improved efficiency and lower maintenance compared with brushed motors.
Expect better battery runtime and sustained performance under load.
Describes whether the motor is brushed or brushless.
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DEWALT DCF850B
Country of Manufacture
Where is the tool manufactured?
0
DEWALT DCF850B
0
Votes
Mexico
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DEWALT DCF850B
Manufactured in Mexico, which may influence import logistics, warranty service centers, or regional distribution.
Country of manufacture does not by itself determine product quality but can affect availability of replacement parts regionally.
States where the product is manufactured.
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DEWALT DCF850B
Tool Class
What is the tool class?
0
DEWALT DCF850B
0
Votes
Compact
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DEWALT DCF850B
Classified as Compact, meaning the tool is designed for tight access and lighter-weight tasks compared with mid-size or heavy-duty models.
Compact tools typically trade some top-end power for improved balance and maneuverability.
Indicates the size and power class of the tool.
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DEWALT DCF850B
Brushless Motor
Does it feature a brushless motor?
Yes
0Votes
DEWALT DCF850B
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DEWALT DCF850B
A brushless motor offers higher efficiency, reduced maintenance, and typically longer life than brushed counterparts.
Brushless designs also tend to deliver better runtime and torque for the same battery capacity.
Confirms if the tool features a brushless motor design.
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DEWALT DCF850B
Release Year
What is the release year?
0
DEWALT DCF850B
0
Votes
2021
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DEWALT DCF850B
2021 is the listed release year, indicating the model includes relatively recent design and component updates.
Replacement parts and accessory compatibility are likely aligned with other products introduced around this timeframe.
Indicates the year the product was released.
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DEWALT DCF850B
Product Type
What is the product type?
0
DEWALT DCF850B
0
Votes
Impact Driver
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Identifies whether the tool is a drill, impact driver, hammer drill, or combo kit.
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DEWALT DCF850B
Cordless Platform Compatibility
What battery platform is it compatible with?
0
DEWALT DCF850B
0
Votes
20V
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Specifies the battery voltage/platform the tool is compatible with.
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DEWALT DCF850B
Package Type
Is it sold as a tool only or a kit?
0
DEWALT DCF850B
0
Votes
Tool Only
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Indicates whether the product is sold as a standalone tool or with included accessories.
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DEWALT DCF850B
Power Source
What is the power source?
0
DEWALT DCF850B
0
Votes
Cordless
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Specifies how the tool receives power.
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DEWALT DCF850B
Intended Use
What is the intended use?
0
DEWALT DCF850B
0
Votes
Professional, Construction, Home Improvement
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Defines the recommended usage segment.
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DEWALT DCF850B
Professional Grade
Is this tool professional grade?
Yes
0Votes
DEWALT DCF850B
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Indicates whether the tool is rated for professional-grade performance.
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DEWALT DCF850B
Certification Compliance
What certifications does it comply with?
0
DEWALT DCF850B
0
Votes
UL
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Lists applicable safety or compliance certifications.
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Power & Motor
13
DEWALT DCF850B
No Load Speed High
What is the high no-load speed?
3,250
RPM
0Votes
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DEWALT DCF850B
High no-load speed is 3250 RPM, suitable for drilling and faster driving applications where speed is prioritized.
Pair the high speed with appropriate bits and material settings to avoid bit wear.
Defines the higher gear rotational speed without load.
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DEWALT DCF850B
Max Torque
What is the maximum torque?
1,825
in-lbs
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DEWALT DCF850B
Maximum torque is 1825 in-lbs (≈ 206.3 N·m), indicating the tool can handle heavy fastening tasks and larger fasteners.
Expect strong performance on larger screws and bolts, but match torque to fastener specifications to avoid over-torquing.
Represents maximum fastening torque output.
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DEWALT DCF850B
Impact Rate
What is the impact rate?
3,800
BPM
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Impact rate is 3800 BPM, indicating how many impacts per minute the tool can deliver for high-torque fastening.
Higher BPM generally translates to faster driving of fasteners in demanding applications.
Defines the number of impacts per minute for impact drivers or hammer drills.
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DEWALT DCF850B
Voltage
What is the operating voltage?
20
Volt
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Operates on a 20 V battery platform, which balances power and portability for both DIY and professional jobs.
This voltage class also ensures compatibility with other tools on the same platform where applicable.
Indicates the operating voltage of the tool platform.
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DEWALT DCF850B
No Load Speed Low
What is the low no-load speed?
1,000
RPM
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Low no-load speed is 1000 RPM, providing increased control and torque for screw-driving and delicate work.
Use the low setting for tasks requiring precision rather than high RPM.
Defines the lower gear rotational speed without load.
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DEWALT DCF850B
Electronic Brake
Does it have an electronic brake?
Yes
0Votes
DEWALT DCF850B
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Electronic brake quickly stops rotation when the trigger is released, improving control and preventing over-driving of fasteners.
It also speeds up transitions between tasks by reducing spin-down time.
Stops the motor quickly after trigger release.
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DEWALT DCF850B
Speed Settings Count
How many speed settings are available?
0
DEWALT DCF850B
0
Votes
3
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Shows how many mechanical speed ranges are available.
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DEWALT DCF850B
Variable Speed Control
Does it have variable speed control?
Yes
0Votes
DEWALT DCF850B
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Indicates if the trigger allows adjustable speed control.
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DEWALT DCF850B
Torque Settings Count
How many torque settings are available?
0
DEWALT DCF850B
0
Votes
3
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Indicates adjustable clutch torque positions.
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DEWALT DCF850B
Hammer Function
Does it include a hammer function?
No
0Votes
DEWALT DCF850B
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Indicates whether hammer drilling mode is available.
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DEWALT DCF850B
Stall Protection
Does it include stall protection?
Yes
0Votes
DEWALT DCF850B
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Prevents motor damage during stall conditions.
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DEWALT DCF850B
Soft Start
Does it support soft start?
No
0Votes
DEWALT DCF850B
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Gradually increases speed to reduce kickback.
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DEWALT DCF850B
Overload Protection
Does it have overload protection?
Yes
0Votes
DEWALT DCF850B
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Protects motor and battery from excessive load.
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Battery & Charging
14
DEWALT DCF850B
Battery Capacity
What is the battery capacity?
5
Ah
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DEWALT DCF850B
Battery capacity is 5 Ah, which typically provides longer runtime per charge compared with lower-capacity packs.
Actual runtime will vary with load, speed setting, and the specific task being performed.
Represents the battery storage capacity in amp-hours.
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DEWALT DCF850B
Number of Batteries Included
How many batteries are included?
0
DEWALT DCF850B
0
Votes
0
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DEWALT DCF850B
Number of batteries included is 0, so batteries must be purchased separately unless you already own compatible packs.
Check battery platform compatibility (this model uses the specified 20V platform) before buying packs.
States how many batteries come in the package.
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DEWALT DCF850B
Charger Type
What type of charger is included?
0
DEWALT DCF850B
0
Votes
Standard Charger
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Includes a Standard Charger, which is the common charging option for day-to-day use and replacement compatibility.
If faster turnaround is needed, consider models offering a fast or rapid charger as an upgrade.
Specifies the type of charger provided.
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DEWALT DCF850B
Battery Platform
Which battery platform is compatible?
0
DEWALT DCF850B
0
Votes
20V
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Uses the 20V battery platform, enabling interchangeability with other 20V tools from the same system.
Maintaining a single battery platform reduces the need to buy multiple battery types.
Specifies which battery platform the tool is compatible with.
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DEWALT DCF850B
Battery Type
What is the battery type?
0
DEWALT DCF850B
0
Votes
Slide Pack
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Defines the physical battery attachment format.
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DEWALT DCF850B
Battery Chemistry
What is the battery chemistry?
0
DEWALT DCF850B
0
Votes
Lithium Ion
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Indicates the chemical composition of the battery cells.
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DEWALT DCF850B
Battery
Is a battery included?
No
0Votes
DEWALT DCF850B
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Indicates whether at least one battery is included.
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DEWALT DCF850B
Charger
Is a charger included?
No
0Votes
DEWALT DCF850B
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Confirms whether a charger is included in the package.
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Charger on DEWALT DCF850B
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DEWALT DCF850B
Fast Charging
Does it support fast charging?
No
0Votes
DEWALT DCF850B
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Indicates compatibility with rapid charging systems.
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DEWALT DCF850B
Battery Indicator
Does it have a battery indicator?
No
0Votes
DEWALT DCF850B
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Shows remaining battery charge level.
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DEWALT DCF850B
Interchangeable Battery System
Is the battery interchangeable across tools?
Yes
0Votes
DEWALT DCF850B
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Indicates compatibility across multiple tools in the same lineup.
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DEWALT DCF850B
Smart Battery Protection
Does it include smart battery protection?
Yes
0Votes
DEWALT DCF850B
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Protects battery from overcharge, overheating, and over-discharge.
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DEWALT DCF850B
Replacement Battery Availability
Are replacement batteries available?
Yes
0Votes
DEWALT DCF850B
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Confirms whether replacement batteries are widely available.
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DEWALT DCF850B
Wireless Charging
Does it support wireless charging?
No
0Votes
DEWALT DCF850B
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Indicates compatibility with wireless charging systems.
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Chuck & Drive System
11
DEWALT DCF850B
Chuck Size
What is the chuck size?
0.25
inch
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DEWALT DCF850B
Chuck size is 0.25 inch (≈ 0.64 cm), suitable for standard 1/4-inch hex bits and small drill bits.
This compact chuck supports quick bit changes while maintaining a low tool profile.
Specifies the maximum shank diameter the chuck can accept.
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DEWALT DCF850B
Keyless Chuck
Does it feature a keyless chuck?
Yes
0Votes
DEWALT DCF850B
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Keyless chuck allows fast, tool-free bit changes and simple tightening by hand, improving job speed.
It is convenient for frequent bit swaps and reduces the need for a keyed chuck tool.
Indicates if bits can be changed without a key.
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DEWALT DCF850B
Drive Size
What is the drive size?
0.25
inch
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Drive size is 0.25 inch (≈ 0.64 cm), which is the common 1/4" hex drive for impact drivers and driver bits.
This standard drive size ensures broad compatibility with common bits and sockets.
Defines the anvil or hex drive size for fastening applications.
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DEWALT DCF850B
Quick Release System
Does it have a quick release system?
Yes
0Votes
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A quick release system speeds up bit or accessory changes, letting you swap bits without tools or complicated steps.
This improves workflow efficiency when alternating between fasteners or drill bits frequently.
Allows rapid bit changes with one hand.
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DEWALT DCF850B
Chuck Type
What type of chuck does it use?
0
DEWALT DCF850B
0
Votes
Keyless
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Identifies the chuck or collet mechanism used to hold bits.
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DEWALT DCF850B
Bit Type Compatibility
What bit types are compatible?
0
DEWALT DCF850B
0
Votes
Hex Shank
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Indicates which bit shank types are supported.
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DEWALT DCF850B
Spindle Lock
Does it have a spindle lock?
No
0Votes
DEWALT DCF850B
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Locks the spindle for easier bit installation or removal.
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DEWALT DCF850B
Clutch Type
What type of clutch system is used?
0
DEWALT DCF850B
0
Votes
Electronic
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Specifies the type of torque control clutch system.
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DEWALT DCF850B
Anvil Type
What type of anvil does it use?
0
DEWALT DCF850B
0
Votes
Hex Collet
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Defines the retention style of the impact anvil.
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DEWALT DCF850B
Magnetic Bit Holder
Does it include a magnetic bit holder?
No
0Votes
DEWALT DCF850B
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Indicates whether a built-in magnetic bit holder is included.
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DEWALT DCF850B
Forward Reverse Switch
Does it have a forward/reverse switch?
Yes
0Votes
DEWALT DCF850B
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Allows switching between forward and reverse rotation.
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Performance & Efficiency
11
DEWALT DCF850B
Maximum Fastening Capacity
What is the maximum fastening capacity?
0.25
inch
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DEWALT DCF850B
Maximum fastening capacity listed as 0.25 inch (≈ 0.64 cm), indicating the largest fastener shank or bit size the tool is designed to handle.
Match fastener size to the tool capability to ensure reliable performance.
Defines maximum recommended screw length or fastening size.
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DEWALT DCF850B
Efficiency Rating
What is the efficiency rating?
0
DEWALT DCF850B
0
Votes
Premium
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Specifies the efficiency rating of the tool or battery system.
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DEWALT DCF850B
Heat Management System
Does it include a heat management system?
Yes
0Votes
DEWALT DCF850B
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Describes whether the tool includes active heat dissipation features.
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Heat Management System on DEWALT DCF850B
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DEWALT DCF850B
Load Sensing Technology
Does it have load sensing technology?
No
0Votes
DEWALT DCF850B
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Automatically adjusts performance based on load conditions.
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DEWALT DCF850B
Auto Torque Adjustment
Does it support auto torque adjustment?
No
0Votes
DEWALT DCF850B
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Automatically modifies torque output based on resistance.
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DEWALT DCF850B
Smart Control Integration
Does it support smart control integration?
No
0Votes
DEWALT DCF850B
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Indicates compatibility with smart tool management systems.
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Maximum Bolt Diameter
What is the maximum bolt diameter?
0.25
inch
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Indicates maximum supported bolt diameter.
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Maximum Screw Size
What is the maximum screw size?
0.25
inch
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Shows the maximum recommended screw size.
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Drilling Mode
Does it include drilling mode?
No
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Confirms availability of standard drilling mode.
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Impact Mode
Does it include impact mode?
Yes
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Confirms availability of impact driving mode.
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Hammer Mode
Does it include hammer mode?
No
0Votes
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Confirms availability of hammer drilling mode.
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Build Quality & Durability
14
DEWALT DCF850B
Grip Material
What is the grip material?
0
DEWALT DCF850B
0
Votes
Rubber Overmold
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Rubber Overmold grip material improves comfort and reduces slip during use, especially in sweaty or oily conditions.
It also helps dampen vibration transmitted to the hand.
Describes the material covering the handle area.
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Housing Material
What is the housing material?
0
DEWALT DCF850B
0
Votes
Reinforced Plastic
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Specifies the primary material used for the tool body.
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Reinforced Gearbox
Does it have a reinforced gearbox?
Yes
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Indicates if the gearbox is reinforced for heavy-duty use.
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Metal Gear Construction
Does it use metal gear construction?
Yes
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Confirms if internal gears are made of metal.
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Dust Resistance Rating
What is the dust resistance rating?
0
DEWALT DCF850B
0
Votes
None
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Indicates level of dust ingress protection.
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Water Resistance Rating
What is the water resistance rating?
0
DEWALT DCF850B
0
Votes
None
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Indicates protection against water exposure.
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DEWALT DCF850B
Drop Protection
Does it have drop protection?
Yes
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Indicates whether the tool is designed to withstand accidental drops.
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Corrosion Resistance
Is it corrosion resistant?
Yes
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Confirms resistance to rust or corrosion.
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Shock Resistant Design
Does it have a shock resistant design?
Yes
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Indicates internal protection against mechanical shock.
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Thermal Protection
Does it include thermal protection?
Yes
0Votes
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Protects internal components from excessive heat.
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Overheat Protection
Does it have overheat protection?
Yes
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Automatically shuts down tool when overheating is detected.
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Sealed Switch Design
Does it have a sealed switch design?
Yes
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Prevents dust and debris from entering switch components.
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Heavy Duty Rating
Is it rated for heavy-duty use?
Yes
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Indicates suitability for heavy-duty jobsite use.
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Industrial Use Approval
Is it approved for industrial use?
No
0Votes
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Confirms approval for industrial-level operation.
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Dimensions & Weight
5
DEWALT DCF850B
Width
What is the overall width?
3.38
inch
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Width is 3.375 inch (≈ 8.57 cm), contributing to the tool's slim profile for access in tight spots.
A narrower body generally improves one-handed control and balance.
Measures the overall side-to-side width of the tool body.
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Depth
What is the overall depth?
3.97
inch
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Depth measures 3.97 inch (≈ 10.08 cm), which gives an idea of the tool's reach or the included accessory dimensions.
This compact depth is typical for handheld impact drivers and aids in working in constrained spaces.
Measures the front-to-back length of the tool.
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Tool Weight
What is the tool weight?
2.1
lbs
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Tool weight is 2.1 lbs (≈ 0.95 kg), making it relatively lightweight and easier to use for extended periods.
Lower weight helps reduce user fatigue, especially when working overhead or in awkward positions.
Weight of the bare tool without battery.
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Height
What is the overall height?
8
inch
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Measures total height from base to top.
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Compact Design
Is it designed as a compact tool?
Yes
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Indicates whether the tool is marketed as compact for tight workspaces.
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Ergonomics & User Comfort
14
DEWALT DCF850B
LED Work Light
Does it include an LED work light?
Yes
0Votes
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An integrated LED work light illuminates the work area for improved visibility in low-light conditions.
This feature is useful when working in tight or dark spaces where external lighting is impractical.
Confirms presence of built-in LED illumination.
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Soft Grip
Does it include a soft grip?
Yes
0Votes
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Soft grip improves handling and comfort for prolonged use, helping reduce hand fatigue during extended tasks.
It also enhances control when working in tight spaces or at awkward angles.
Indicates cushioned grip material for comfort.
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Handle Design
What is the handle design?
0
DEWALT DCF850B
0
Votes
Pistol Grip
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Describes the structural handle layout.
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Ergonomic Handle
Does it have an ergonomic handle?
Yes
0Votes
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Indicates whether the handle is shaped for ergonomic comfort.
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Anti Slip Grip
Does it feature an anti-slip grip?
Yes
0Votes
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Confirms the presence of slip-resistant grip surfaces.
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Vibration Reduction System
Does it have a vibration reduction system?
No
0Votes
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