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  • 'PWRCORE 20™' battery system
  • 125 mm disc Ø
  • 'Clic' safety guard
3921 CA

Cordless angle grinder



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

Easy-to-handle cordless angle grinder
The ‘20V Max’ (18V) SKIL 3921 is a powerful cordless angle grinder compatible with discs of 125 mm. This tool is ideal for easy and controlled grinding and cutting. The ‘Clic’ system allows you to easily adjust the guard without a key, so you can deflect sparks in any desired direction. And depending on the task at hand, you can easily adjust the side handle into three comfortable positions. Thanks to the integrated wrench storage in the side handle, a wrench for changing accessories is always accessible. This cordless angle grinder has an electronic soft start for a gradual run-up to maximum speed without kickback. What’s more, the ergonomic design with softgrip ensures extra working comfort. Changing or replacing discs is easy, thanks to the convenient spindle-lock system. The SKIL 3921 CA is supplied without a battery.

‘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
Arbor Ø 22MMT
Battery type Lithium-Ion
Net weight excl. battery 1.7KGM
No-load speed 8500r.p.m.
Spindle thread M14
Max. disk Ø 125MMT
Voltage Max 20V Max
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Noise and Vibration Levels

Sound power 91.52N
Sound pressure 80.52N
Uncertainty noise power (K) 32N
Vibration level (surface grinding) 5.5MSK
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SKIL 3921 CA Instruction Manual


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