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  • 'PWRCORE 20™' battery system
  • 4 functions
  • 2.2 J impact force
3851 CA

'XP brushless' cordless SDS drill



Our patented ‘KEEPCOOL™’ technology prevents batteries from overheating and improves battery performance.

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Our intelligent ACTIVCELL™ technology continuously monitors the voltage, temperature and current of the battery. Transmitting this information to the tool in real-time, it helps extract the right amount of energy from the battery for the job.

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Do you have big jobs planned? Rest assured, SKIL has the solution. Our ‘PWRCORE 20™’ battery system and smart, intuitive tools that are packed with innovation ensure you have the right power to get any job done.

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Product Description

Brushless cordless SDS drill with pneumatic hammer mechanism
The ‘20V Max’ 3851 is a four-function cordless SDS drill with pneumatic hammer mechanism and part of the SKIL ‘brushless XP’ range. ‘XP’ tools deliver exceptional performance and durability, thanks to their high specifications and advanced digital brushless motors. Like all other SKIL ‘20V Max’ cordless tools, this model is powered by the industry-leading, advanced ‘PWRCORE 20™’ battery and charger technology. Brushless SKIL 3851 has a hammer function for drilling in concrete up to 24 mm, a hammer stop function for regular drilling and screwdriving, and a rotation stop function for light chiselling jobs. Last but not least, this drill allows chiselling with free rotation. The digital brushless motor delivers more power, more efficiency and a 10x longer lifetime than a comparable brushed motor. The tool’s vibration reduction system (‘VRS’) ensures optimal working comfort by reducing vibrations. All in all, this versatile tool truly offers everything you need: reliable Lithium-Ion battery technology, variable speed for full control and the LED light ensures good visibility of your work. The battery and charger aren’t included.

‘PWRCORE 20™’ industry-leading battery technology to power all SKIL '20V Max' tools
The ‘PWRCORE 20™’ system consists of industry-leading advanced battery and charger technology, plus innovative features you won’t find anywhere else, such as our patented ‘KEEPCOOL™’ battery cooling technology which increases the runtime by up to 25% and doubles the battery lifetime. Whereas the patented ‘ACTIVCELL™’ technology safeguards a maximum performance and optimal battery protection. The ‘PWRCORE 20™’ batteries and chargers are 100% compatible and interchangeable with all SKIL ‘PWRCORE 20™’ power tools and garden tools for ultimate flexibility.

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Number of batteries 0
Battery type
Chuck type SDS+
Drilling capacity in steel
Drilling capacity in wood
Max. impact rate
Drilling capacity in concrete
Impact force 2.2JOU
No-load speed
Voltage Max
20V Max
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Noise and Vibration Levels

Sound power 104.42N
Sound pressure 93.42N
Vibration level (chiseling) 12.8MSK
Vibration level (hammer drilling in concrete) 16.2MSK
Uncertainty noise power (K) 32N
Uncertainty Vibration (K) 1.5MSK
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SKIL 3851 CA Instruction Manual


'Compact brushless' cordless impact driver can be found at the following stores: 

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