Hard alloy drill bit

Match: all kinds of drill pipe Applied working places: soft rock and hard rock. Dia: 27mm-175mm

Hard alloy drill bit introduction

 Hard alloy drill bits are main tools widely used in percussion drilling. We produce Chisel bit, 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.

Hard alloy drill bit parameters

 

NO.	specification (mm)				drill type
	Dia.(mm)	contact size(mm)
1	27		M12/Φ8	M14×1.5	2
2	28		M12/Φ8	F12×12	2
3	30		M12/Φ8	F12×12	2
4	32		M14×1.5/Φ8	F12×12	2
5	34		M14×1.5/Φ8	F12×12	2
6	36		M14×1.5/Φ8	F12×12	2
7	38		T24×5/Φ12	F14×14	2--3
8	42		T24×5/Φ12	F13-14	2--3
9	45		T24×5/Φ12	F13-18	2--3
10	55		T24×5/Φ12	F13-18	4
11	65		T24×5	F13-18	4--5
12	75		T33×4.23	F13-18	4--5
13	76		T33×4.23	F18-24	4--5
14	82		T42×5.08	F18-24	4--5
15	85		T42×5.08	F18-24	4--5
16	89		T42×5.08	F24-32	5--7
17	95		T55×5.08	F24-32	5--7
18	110		T55×5.08	B35-45	5--7
19	125		T55×5.08	B35-45	5--12
20	135		T55×5.08	B35-45	5--12

3,Hard alloy drill bit  diagram

Hard alloy drill bit