This set allows you to mix and match drive sizes for your sockets, ratchet handles, extension bars and other accessories.
Ideal tool for mechanics, engineers, carpenters or DIY enthusiasts
Sprung Ball bearing fitting retainer
Specification:
Size:
1#:1/2 "to 3/8" - (12.5mm square hole to 9.5mm square head) Length: 36mm
2#:3/8 "to 1/4" - (9.5mm square hole to 6.3mm square head) Length: 26mm
3#:3/8 "to 1/2" - (9.5mm square hole to 12.5mm square head) Length: 35mm
4#:1/4 "to 3/8" - (6.3mm square hole to 9.5mm square head) Length: 25mm
Height: about 25mm, 26mm, 35mm, 36mm
Hardness: 60HRC