SKS Air Impact Wrench Kit 1/2″ Drive
Model: HY-007
Specifications
| Model: | HY-007 |
| Drive size: | 1/2 inch (square drive) |
| Type: | Pneumatic (air-powered impact wrench) |
| Mechanism: | Hammer/impact clutch system |
| Max torque: | 230 ft-lb (≈312 Nm) |
| Free speed: | 7,000 RPM |
| Air consumption: | ~4 CFM |
| Working pressure: | 90 PSI |
| Air inlet: | 1/4″ |
| Recommended hose size: | 1/4″ ID |
Compressor requirement:
Minimum ~1–2 HP compressor
Must maintain stable 90 PSI under load
Typical Kit Contents
Impact wrench body
Metric sockets include 9, 10, 12, 13, 14, 17, 19, 21, 24, 27mm
Extension bar
Oil bottle (lubricator)
Air fittings
Blow-mold case
APPLICATIONS
Automotive / Motorcycle
Wheel lug nut removal/install
Brake and suspension bolts
CVT disassembly (common in scooters)
Engine cover / crankcase bolts
Widely used for DIY maintenance and small shops
Light Industrial Use
Assembly line fastening
Equipment maintenance
Light machinery repair
Suitable only for medium-duty, not heavy industrial torque
General Workshop Tasks
Fast bolt removal (faster than manual tools)
Repetitive fastening jobs
Service garages and vulcanizing shops
Application limits
Not ideal for: Truck tires, heavily rusted bolts, and Structural or high-torque applications
MATERIALS & CONSTRUCTION
Housing
Material: Cast aluminum alloy
Purpose: Lightweight, Good heat dissipation, Corrosion resistance, Internal Mechanism
Hammer & anvil: Hardened alloy steel
Clutch system: Impact hammer (twin hammer or single hammer type in budget models)
Function: Stores rotational energy and releases it as impact force
Drive (Anvil)
Material: Heat-treated steel
Designed for high torque transfer and wear resistance
Handle / Grip
Metal body with textured or coated grip
Some kits include rubberized sleeve (varies by supplier)
Air Motor Components
Rotor & vanes: Steel rotor, Carbon/fiber vanes (wear parts)
Bearings: Steel ball bearings for smooth rotation
Practical Insight
Works best with proper lubrication (air tool oil)
Performance depends heavily on compressor quality
Real torque output may drop if:
Air pressure is unstable
Hose is too small/long
Good for basic automotive work and CVT cleaning
Simple, durable construction (metal + steel internals)
Not for heavy-duty or high-torque jobs