1.Type:HSS drill bits 2.Material:HSS,HSS-E,K30,etc 3.Coating:Tin,Bright,Ticn,etc 4.Complete in specification HSS drill bits Features: 1.Drill bits:HSS drill bits2.Material:HSS,HSS-E,K30,etc3.Coating:Tin,Bright,Ticn,etc4.Complete in specification5.Type:left/right drill bit6.Size:Standard or as require If you have any question, please feel free to contact with us.