Nuron
SIW 8-22 ½” Cordless impact wrench
Cordless impact wrench SIW 8-22 1/2" #2251631
Ultimate-class, high-torque cordless impact wrench with 1/2" friction ring anvil for structural bolting and anchoring (Nuron battery platform)
- Anvil type: 1/2" friction ring
- Maximum torque: 443 ft-lbs (1); 738 ft-lbs (2)
- Full hammering frequency: 2.950 impacts/minute
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Tool body with cardboard box
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Discounted net
$469.00
Technical Data
Anvil type
1/2" friction ring
Maximum torque
443 ft-lbs (1); 738 ft-lbs (2) 1
Full hammering frequency
2.950 impacts/minute
Number of gears
2
No load RPM
gear 1: 1250 rpm; gear 2: 1500 rpm
Dimensions (LxWxH)
8.1 x 3.1 x 8.8 in
Tool body weight
5.3 lb
A-weighted emission sound pressure level
101 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
- On the Nuron battery platform – cordless impact wrenches without compromise thanks to longer-lasting batteries, time-saving accessories and a range of services to keep you productive, today and tomorrow
- Better ergonomics – slimmer, 1-3/4” shorter and over 1 lb. lighter than it its predecessor, helping to make your work more efficient when bolting all day
Applications
- Bolting steel – structural steel connections, pipe flanges, equipment, A325 bolts (1/2” to 15/16” diameter)
- Setting HUS anchors in concrete – such as for baseplates, formwork props, handrails and temporary fixtures (1/2” to 3/4” diameter)
- Lag bolting in wood – such as for primary and secondary wood structures, wooden roofs or temporary structures (1/2” to ¾” diameter)
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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