... Coated:TIN,Bright.. 5)Point angle:90/120 degree Spotting drill bits,drill bits,drilling tools,cutting toolsFeature1.Size:standard 3mm-20mm or as ... Hard Steels,Ductile Cast Iron,Mold Steels,Aluminum.6.Mainly used for the hole processing prefabricated accurate location, guide the ... -taps.en.alibaba.comSKYPE: Kelly16230Trademanager: cn1000340775Mobile: 0086 13774658955 Spotting drill bits,gun drill bits