Heavy Duty Retrac Bit Button

Thread: GT60, ST58, ST68
Application: Top hammer - bench drilling
Retract button bits are the go-to solution for demanding drilling applications where deep-hole accuracy, bit retrieval, and wear resistance are crucial.

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General Introduction

A heavy duty retrac bit button is a top hammer drill bit with a trapezoidal (T) thread connection and retrac (back rib) design, engineered for demanding rock drilling applications such as mining, tunneling, and bench drilling. The retrac design improves hole cleaning and bit retrieval, reducing the risk of jamming in deep or fractured rock formations.

Heavy duty retrac bit buttons are widely used in industries like mining & exploration (gold, iron ore, copper, coal and so on), bench drilling and tunneling construction, infrastructure development, geo-technical drilling.

Specification

GT60 Bit Button Retract

Pic	Article No.	Dia		Button		Flushing Hole		Angle (°)	Weight(kg)
Pic	Article No.	mm	inch	Front	Guage	Front	Gauge	Angle (°)	Weight(kg)
	GD-BS(B)RF92GT60-864	92	3 5/8	6 x 12	8 x 14	4	0	35	5.10
	GD-BS(B)RF96GT60-864	96	3 3/4	6 x 12	8 x 14	4	0	35	6.50
	GD-BS(B)RU102GT60-993	102	4	9 x 11	9 x 13	3	0	35	8.50
	GD-BS(B)RU115GT60-9103	115	4 1/2	10 x 12	9 x 14	3	0	35	11.80
	GD-BS(B)RU127GT60-9103	127	5	10 x 13	9 x 16	3	0	35	15.90
	GD-BS(B)RU140GT60-9103	140	5 1/2	10 x 14	9 x 16	3	0	35	19.60
	GD-BS(B)RU127GT60-9123	152	6	12 x 14	9 x 16	3	0	35	23.50
	GD-BS(B)RF102GT60-963	102	4	6 x 13	9 x 13	3	0	35	8.50
	GD-BS(B)RF115GT60-973	115	4 1/2	7 x 14	9 x 14	3	0	35	11.80
	GD-BS(B)RF127GT60-983	127	5	8 x 14	9 x 16	3	0	35	15.90
	GD-BS(B)RF140GT60-1083	140	5 1/2	8 x 14	10 x 16	3	0	35	19.60
	GD-BS(B)RF152GT60-10103	152	6	10 x 14	10 x 16	3	0	35	23.50

ST58 Tungsten Carbide Bit Retract

Pic	Article No.	Dia		Button		Flushing Hole		Angle (°)	Weight(kg)
Pic	Article No.	mm	inch	Front	Guage	Front	Gauge	Angle (°)	Weight(kg)
	GD-BS(B)RD89ST58-864	89	3 1/2	6 x 12	8 x 13	4	0	35	5.4
	GD-BS(B)RD102ST58-864	102	4	6 x 12	8 x 14	4	0	35	7.6
	GD-BS(B)RD115ST58-874	115	4 1/2	7 x 13	8 x 14	4	0	35	10.4
	GD-BS(B)RD127ST58-874	127	5	7 x 14	8 x 16	4	0	35	12.6
	GD-BS(B)RF89ST58-1064	89	3 1/2	6 x 12	10 x 12	4	0	35	5.4
	GD-BS(B)RF102ST58-1084	102	4	8 x 12	10 x 12	4	0	35	7.6
	GD-BS(B)RF115ST58-1084	115	4 1/2	8 x 14	10 x 14	4	0	35	10.4

ST68 Retrac Drill Bits

Pic	Article No.	Dia		Button		Flushing Hole		Angle (°)	Weight(kg)
Pic	Article No.	mm	inch	Front	Guage	Front	Gauge	Angle (°)	Weight(kg)
	GD-BS(B)RF102ST68-1084	102	4	6x 12	10 x 12	4	0	35	6.4
	GD-BS(B)RF115ST68-1084	115	4 1/2	8 x 12	10 x 12	4	0	35	9.2
	GD-BS(B)RF127ST68-10104	127	5	10 x 14	10 x 14	4	0	35	12.0

Technical Information

Chemical composition:

product-709-89

Mechanical property:

product-707-82

Tungsten Carbide (YK05 / Element Six)

product-600-82

features

Strict Heat Treatment Technology for Extended Tool Life

Heat treatment is the backbone of durability in drilling tools, and our factory implements an advanced multi-stage heat treatment process to maximize hardness, toughness, and wear resistance. Each Top Hammer bit, DTH hammer component, and diamond core barrel undergoes precise temperature control managed by automatic furnace systems with ±2°C accuracy.

Customized Drilling Solutions for Large-Scale Engineering Projects

We understand that engineering environments differ greatly-from granite quarries to soft formations and deep mineral exploration sites. Therefore, we provide customized drilling solutions for B2B clients needing tailored Top Hammer tools, DTH drilling systems, or diamond core drilling equipment.

Comprehensive Product Traceability System

At our manufacturing facilities, every Top Hammer Drilling Tool, DTH Drill, and Diamond Core Drilling component is assigned a unique production code that ensures full traceability from raw material sourcing to final shipment.