Universal socket + ratchet wrench +3/8

Turn 1/4 connecting rod

Universal sleeve the whole is made of chrome vanadium steel, which is rust-proof and durable.

Suitable for butterfly screw cap, hexagonal screw cap, square screw cap, lifting eye bolt cap, Hook screw cap, tension screw, square head screw cap, etc. (round not line).

  Special-shaped nut with a diameter of 7-19mm (not round), this set the tube can be all done!

Universal sleeve with ratchet wrench, you can manually operate.

With a small connecting rod, it can be connected to electric hand drill for use.

  Chrome vanadium steel is a kind of alloy steel. The Function of vanadium in steel is strong carbide, and the grain is refined, but the hardenability is poor. Therefore, adding vanadium into chromium steel increases the content of carbide and improves the strength and toughness. Therefore, the hardness and wear resistance of chromium vanadium steel are very high.

The hardness of chrome vanadium steel after heat treatment is 60-61hrc

The hardness of 45# steel after heat treatment is 45-50hrc

F9999090AE0