... bit,hss drill bit 2)Material:Hss-co,hss,carbide 3)Type:left and right hand 4)Point angle:110, ... bit,carbide drill bitFeature1.Size:standard 0.5mm-20mm or special as requrie2.Material:hss,hss-co,carbide3.Coated:TIN,Bright,Tialn,black ... drill,taper shank drill,1/2" parallel shank drill,solid carbide drill etc. Carbide drill bit