FORCE F131-48121 1" Drive 4-Point Square Socket No. 21

FORCE F131-48121 Square Impact Socket, 1 Inch Drive, Size 21 mm
The 4-point truck wheel impact socket (1" Dr. Square Budd Wheel Impact Socket) FORCE, size 21 mm, model F131-48121, is designed specifically for removing and tightening inner dual cap nuts (Inner Cap Nut / Budd Wheel) on 10-wheel trucks and trailers. The 1-inch drive base securely handles high torque from large impact wrenches. The precision-machined 4-point (4PT) opening fits snugly onto square studs to prevent rounding off. Made of specially hardened Chrome Molybdenum (CR-MO) alloy steel for outstanding resistance to repeated impacts, finished with black oxide coating for rust resistance.

Features:
- 21 mm 4-point (4PT) opening, standard specification for truck inner dual wheel nuts
- 1-inch drive, strong and durable, handles high torque and heavy impact from industrial pneumatic tools
- Made of tough, strong CR-MO steel that prevents shattering during use for technician safety
- Black phosphate finish protects against rust and corrosion from engine oil and workplace chemicals

Applications:
For maintenance of 10-wheel trucks, tractor units, large buses, and commercial heavy vehicle tire service centers

Specification:
- Brand: FORCE
- Model: F131-48121
- Drive size: 1 inch
- Socket profile: 4-point (4 Point / Square Socket)
- Size: 21 mm
- Overall length: 85 mm"