'Brushless' cordless angle grinder




- Brushless motor: faster, stronger and lasting 10x longer
- Powerful '20V Max' (18V) cordless angle grinder for easy and controlled grinding or cutting
- Soft start for gradual run-up to maximum speed without kickback
- Overload protection protects the motor
- When attaching a battery with the switch in on-position, restart protection ensures that the tool does not start automatically
- Three side handle positions for optimal grip in all applications
- Safety guard with 'Clic' system can be adjusted to every working situation in seconds
- Spindle lock for easy accessory change
- Lithium-Ion technology: no memory effect, no self-discharge and always ready for use
- Anti-slip soft grip for more user comfort

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

Digital Brushless Motors
The latest cutting-edge technology is embedded in the very DNA of each and every SKIL tool. Our compact, digital brushless motors deliver extra power, extra efficiency and a longer lifetime than comparable brushed motors.
Discover Digital Brushless MotorsPWRASSIST™
There’s no need to restrict your SKIL batteries to the use of SKIL power tools. Our PWRASSIST™ battery and PWRASSIST™ USB adapter allow you to charge phones and tablets on the go.
Discover PWRASSIST™

PWRJUMP™
Less charging time for batteries means less downtime. Get your SKIL 20V Max PWRCORE 20™ Lithium-ion batteries powered up fast to get back to the job in a flash.
Discover PWRJUMP™

PWRCORE 20™ SERIOUS POWER AND PERFORMANCE.
PWRCORE 20™ is the perfect choice for bigger projects. The serious power and performance allow you to complete every task at hand with ease.
Product Description
Robust brushless cordless angle grinder
The ‘20V Max’ (18V) SKIL 3930 is a powerful cordless angle grinder compatible with discs of 125 mm. The brushless motor is faster, stronger and lasts 10 times longer than a comparable brushed motor. This tool is ideal for easy and controlled grinding and cutting. This cordless angle grinder has an electronic soft start for a gradual run-up to maximum speed without kickback. 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. 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 3930 DA is supplied in a carrying bag with a ‘20V Max’ (18V) 4.0Ah ‘KEEPCOOL™’ battery, a 'PWRJUMP™' charger and one grinding disc.
‘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.
Specifications
| Performance Level | EXCEPTIONAL PERFORMANCE |
|---|---|
| Battery capacity | 4.0 Ah |
| Plug Type | Type C 2 Pin EU CEE 7/16 (Flat) |
| Battery type | Lithium-Ion |
| No Load Speed (rpm) | 8500 |
| Charge current | 6 A |
| Number of batteries | 1 |
| Net weight excl. battery | 1.88 kg |
| Power source | Battery (cordless) |
| Max. disk Ø | 125 mm |
| Spindle thread | M14 |
| Power Platform | PWRCORE20 |
| Brushless | Yes |
| Warranty | 3 year warranty for domestic use. |
| EAN | 8719643005144 |
| Order Number | AG1E3930DA |
| Sound pressure | 81.5 dB |
| Uncertainty noise power (K) | 3 dB |
| Uncertainty Vibration (K) | 1.5 m/s² |
| Sound power | 92.5 dB |
| Vibration level (surface grinding) | 3.9 m/s² |
| Charging Time | 0.83 h |
Packaging contains
- SKIL 3930 brushless cordless angle grinder
- 20V Max' 4.0Ah 'KEEPCOOL™' Li-Ion battery
- 'PWRJUMP™' charger (3123 AA)
- Carrying bag
- Safety guard
- Grinding disc
- Side handle
- Accessory key
- Instruction manual
Available documents for this tool

































