Anchor Drill Bit

Anchor  drill bitSpecifications1.high-quality 2.high- elastic 3.rigid 4.automatically adjustable 5.stable6.integral1.30mm coal mining hard alloy drill bit  introducationHard alloy drill bits are main tools widely  used in percussion drilling. We produce Chisel bit,Website:http://www.yikuangdrilling.com, cross bit, three-wing bit,  button bit and so on. Material: high-class alloy bitCraft: forgingApplication: the drilling of limestone,  moorstone, marble; the drilling operation of iron mine, goldmine and so on.2. 30mm coal mining hard alloy drill bit  specification NO.specification    (mm)drill    typeDia.(mm)contact    size(mm)127M12/8M14×1.52228M12/8F12×122330M12/8F12×122432M14×1.5/8F12×122534M14×1.5/8F12×122636M14×1.5/8F12×122738T24×512F14×142--3842T24×5/12F13-142--3945T24×5/12F13-182--31055T24×5/12F13-1841165T24×5F13-184--51275T33×4.23F13-184--51376T33×4.23F18-244--51482T42×5.08F18-244--51585T42×5.08F18-244--51689T42×5.08F24-325--71795T55×5.08F24-325--718110T55×5.08B35-455--719125T55×5.08B35-455--1220135T55×5.08B35-455--12