Nuron
SIW 6AT-22 Mid-Torque impact wrench
Power-class 22V impact wrench with robust 1/2" friction ring anvil for faster and safer anchoring and bolting
- Anvil type: 1/2" friction ring
- Maximum torque: 221 ft-lbs (1); 332 ft-lbs (2)
- Nut busting torque: 479 ft-lbs
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Technical Data
Anvil type
1/2" friction ring
Maximum torque
221 ft-lbs (1); 332 ft-lbs (2) 1
Nut busting torque
479 ft-lbs
Full hammering frequency
3500 impacts/minute
Number of gears
2
No load RPM
gear 1: 1550 rpm; gear 2: 1750 rpm
Dimensions (LxWxH)
7.2 x 2.8 x 8.7 in
Tool body weight
4 lb
A-weighted emission sound pressure level
100 dB (A) 2
Rated voltage
21.6 V
- Do not use the tool for applications where an exact torque or maximum torque is specified - there is a risk of over-tightening and damaging the screw or workpiece.
- According to the applicable product standard (see the Operating Instruction for more details)
Documents
Features & Applications
Features
- Faster concrete screw anchor setting from a more compact tool, thanks to the combination of brushless motor and next-generation Nuron batteries
- More durable build – the brushless motor and friction ring anvil contribute to the longevity of our cordless impact wrenches
Applications
- Setting HUS screw anchors in concrete for baseplates, formwork props, handrails and temporary fixtures (3/8”-5/8” diameter)
- Setting Hilti stud anchors in concrete with Adaptive Torque module (1/2"-3/4” diameter)
- Lag bolting in wood for primary and secondary wood structures, wood roofs, or temporary structures (3/8”-5/8” diameter)
- Setting Hilti MT installation system more quickly and safely with Adaptive Torque module
For approval or certificate information, please see individual items.
Services

Hilti Tool Service
- Product warranty against parts and manufacturing irregularities for 20 years
- Service is free of charge up to 2 years, including wear & tear, pick-up and delivery
- 1 or free, in and out of the repair center the same day or repair is free of charge

Fleet Management
- Monthly usage fee covering all tool, service and repair costs helping to ensure absolute cost control and back-office efficiency.
- High-performing tools and latest technology help to increase jobsite productivity.
- Loan tools during repair to reduce downtime.
- Temporary tools for peak times and special applications help to reduce investments.
- Theft coverage helps to reduce financial risk and unexpected expenses.
Product Videos
Consulting & Support
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