Hex key sets
1) Material: Carbon steel, CR-V
2) Application: hand tool set
3) Process: heat treatment, heat forging
4) Finish: phosphorization treatment
5) MOQ: 1000PCS
Advantages
1) speicial material for superior quality and longevity
2) phosphating surface finish for environmental protection ,rust protection and best price
3) attractive apperance
4) hard enough and wearable, precise screw thread make work easier.
5) First class service from promotion to long-term cooperation