T45 Drop center drill bit

• Product introduction
• Product parameters

Introduction to T45 Drop center drill bit

Introduction

• The threaded drill bit is equipped with the hydraulic drilling jumbo and used for crush rock, and it is widely used in tunnel construction, large scale mine(open and underground )and large section tunnel advance in metal mine.

• Our threaded drill bit is made by best quality alloy steel bar and tungsten carbide, through heat treatment like Atlas, it includes R25, R28, R32, R35, R38, T45, T51, ST58, HT60, ST68 and so on. And the head diameter range from 32mm to 127mm.

Note: We can design and manufacture according to customer’s requirement of the bit diameter, buttons type and others.

Specifications：

Description	Button bit made with high quality of best quality alloy steel bar and tungsten carbide, through heat treatment like Atlas.
Material	Alloy steel bar and tungsten carbide bit
MOQ	No MOQ required for testing and trial order
Body type	Normal and Retract type
Thread type	R22, R25, R28, R32, R38, T38, T45, T51, ST58, ST68, GT60
Diameter	32mm-152mm
Button bit shape	Spherical, Ballistic and Conical
Face shape	Flat shape, Drop-center shape

T45 thread drill bit specification

Product	Dia		Button size		Gauge Button Angle	Flushing hole		Weight
	(mm)	(inch)	Gauge No Size	Front No Size		Side	Front	(kg)
			(mm)	(mm)
T45 (1 3/4″) General Flat Face button Bit	70	2 3/4	8×11	4×10	30°	2	2	2.5
					35°	2	2	2.4
	76	3	8×12	4×11	35°	2	2	2.5
			8×12	4×12	35°	2	2	2.5
			8×12	5×12	35°	2	2	2.6
	89	3 1/2	8×14	6×12	30°	2	2	4.7
					35°	2	2	4.6
			8×13	5×12	35°	2	2	4.5
	102	4	8×14	6×14	30°	0	2	5
					35°	0	2	4.9
			8×14	7×12	35°	2	2	5
	115	4 1/2	8×14	8×14	30°	2	2	6.9
			8×14	8×13	35°	2	2	6.8
T45 (1 3/4″) General Drop Center Button Bit	70	2 3/4	8×11	4×11 1×9	30°	1	4	2.5
					35°	1	4	2.4
	76	3	8×11	4×11 1×11	30°	1	4	2.7
					35°	1	4	2.6
	89	3 1/2	8×12	4×12 2×10	30°	0	4	4.7
					35°	0	4	4.6
					30°	1	4	4.7
					35°	1	4	4.6
	102	4	8×12	4×12 2×10	30°	0	4	4.9
					35°	0	4	4.8
			8×13	4×12 2×10	30°	1	4	4.9
			8×14	4×12 2×10	35°	1	4	4.8
T45 (1 3/4″) Retract Flat Face Button Bit	70	2 3/4	8×10	4×10	30°	2	2	2.5
					35°	2	2	2.5
	76	3	8×11	5×11	30°	2	2	3.1
			8×12	5×11	35°	2	2	3
	89	3 1/2	8×12	6×12	30°	2	2	5.1
					35°	2	2	5
			8×13	6×12	30°	2	2	5.3
					35°	2	2	5.3
	102	4	8×14	7×12	30°	0	2	8.3
					35°	0	2	8.2
T45 (1 3/4″) Retract Drop Center Button Bit	70	2 3/4	8×10	4×10 1×9	30°	1	4	5.5
					35°	1	4	5.4
	76	3	8×11	4×11 1×11	30°	2	2	5.3
					35°	2	2	5.3
	89	3 1/2	8×12	4×11 2×10	30°	0	4	6.9
					35°	0	4	6.8
	102	4	8×12	4×12 4×10	30°	0	2	8.3
					35°	0	2	8.2
	115	4 1/2	9×14	6×13 2×13	30°	1	3	8
					35°	1	3	7.9