US PRO 3695 21mm 3/4 Inch Drive 6 Point Impact Socket Box of 10

Designed for demanding impact applications, the US PRO 3695 impact socket delivers strength, reliability, and consistent performance under high torque conditions. Manufactured from tough 42CrMo chrome molybdenum steel, it is hardened and tempered to withstand repeated use with air and electric impact wrenches.

The 6 point profile ensures secure fastener engagement, reducing the risk of rounding, while the black phosphate finish provides corrosion resistance in harsh workshop environments. Supplied as a box of 10 single sockets, this is an ideal solution for garages, fleet maintenance, and industrial tool users where 21mm is a regularly used size.

Key Features

• 21mm impact socket for high torque fastening

• 3/4 inch square drive

• 6 point profile for improved grip

• Manufactured from 42CrMo chrome molybdenum steel

• Hardened to HRC 45 for durability

• Black phosphate finish for corrosion protection

• Supplied as a box of 10

Specifications

• Size: 21mm

• Drive: 3/4 inch

• Points: 6

• Overall length: 51mm

• Outside diameter (socket end): 34.5mm

• Outside diameter (drive end): 44mm

• Material: 42CrMo chrome molybdenum steel

• Hardness: HRC 45

• Finish: Black phosphate

• Pack quantity: 10