Retract Thread Button Bits

Thread size:R25, R28, R32, R38, T38, T45, T51, ST58, ST68

Head diameters: 51mm ~ 152mm

Face designs: flat face, drop center, uni-face

Applications: Drilling works for blasting duties in tunneling, construction, mining, quarrying, etc.

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Product Details

Parameters

Product Details

Retractable Button Bit for Various Rock Hardness Drilling

Description:

The button bit is renowned for its exceptional wear resistance in medium-hard to hard abrasive rock formations (compressive strength: 200-260 MPa). Featuring spherical tungsten carbide inserts with superior fracture resistance, it is ideal for mining, tunneling, and quarrying applications. Manufactured from high-quality alloy steel bars and tungsten carbide through advanced heat treatment processes.

Key Features:

Widely used in drifting and tunneling operations；
Optimized bit face design for medium-hard to hard abrasive rock penetration

Technical Specifications:

Parameter	Details
Material	Alloy Steel Bar + Tungsten Carbide Composite
MOQ	1-5 pcs (trial orders accepted)
Body Type	Standard / Retractable
Thread Type	R25, R28, R32, R38, T38, T45, T51, ST58, ST68
Diameter Range	32mm – 152mm
Button Shape	Spherical / Ballistic
Face Shape	Flat / Drop-Center

Parameters

R25

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	41	1 5/8″	5 × 9	2 × 8	2	1	0.78	R25-417YFP
	45	1 3/4″	6 × 9	3 × 8	1	3	1	R25-459YFP
	48	1 7/8″	6 × 10	3 × 9	1	3	1.1	R25-489YFP
	51	2″	6 × 10	3 × 9	–	3	1.35	R25-519YFP
	55	2 11/64″	6 × 11	3 × 9	1	3	1.54	R25-559YFP
	57	2 1/4″	6 × 10	3 × 10	–	3	1.6	R25-579YFP
	64	2 1/2″	8 × 11	4 × 10	1	2	2.2	R25-6412YFP

R28

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	45	1 3/4″	6 × 9	3 × 8	1	3	1	R28-459YFP
	51	2″	6 × 10	3 × 9	1	3	1.35	R28-519YFP

R32

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	45	1 3/4″	6 × 9	3 × 8	1	3	0.9	R32-459YFP
	48	1 7/8″	6 × 10	3 × 9	1	3	1.1	R32-489YFP
	51	2″	6 × 10	3 × 9	–	3	1.2	R32-519YFP
	57	2 1/4″	6 × 10	3 × 10	–	3	1.7	R32-579YFP
	64	2 1/2″	6 × 11	3 × 10	1	2	2.2	R32-649YFP

	60	2 23/64″	8 × 10	4 × 9	1	2	1.7	R32-6012YFP
	64	2 1/2″	8 × 10	4 × 10	2	2	1.9	R32-6412YFP
	76	3″	8 × 12	4 × 11	2	2	2.2	R32-7612YFP

	76	3″	8 × 11	4 × 11, 1 × 11	–	4	3.3	R32-7613YFA

SR35

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	51	2″	8 × 9	3 × 9	2	1	1.6	SR35-5111YFP
	54	2 1/8″	8 × 9	3 × 9	2	1	1.8	SR35-5411YFP

	54	2 1/8″	6 × 10	3 × 9	1	3	1.3	SR35-549YFA

R38

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	64	2 1/2″	8 × 10	4 × 10	2	2	1.9	R38-6412YFP
	76	3″	8 × 12	4 × 11	2	2	2.2	R38-7612YFP
	64	2 1/2″	6 × 11	3 × 10	1	2	1.9	R38-649YFP

	64	2 1/2″	6 × 11	3 × 10, 1 × 9	1	2	1.9	R38-6410YFA
	64	2 1/2″	8 × 10	4 × 10, 1 × 9	1	4	1.9	R38-6413YFA
	66	2 19/32″	6 × 11	3 × 10, 1 × 9	1	2	1.9	R38-6610YFA
	70	2 3/4″	8 × 10	4 × 10, 1 × 9	1	4	2.4	R38-7013YFA
	76	3″	8 × 11	4 × 11, 1 × 11	–	4	3.3	R38-7613YFA
	89	3 1/2″	8 × 12	4 × 12, 2 × 10	1	4	5.3	R38-8914YFA
	89	3 1/2″	8 × 12	4 × 11, 1 × 11	1	4	5.3	R38-8913YFA

T38

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	64	2 1/2″	8 × 10	4 × 10	2	2	1.9	T38-6412YFP
	76	3″	8 × 12	4 × 11	2	2	2.2	T38-7612YFP
	64	2 1/2″	6 × 11	3 × 10	1	2	1.9	T38-649YFP

	64	2 1/2″	6 × 11	3 × 10, 1 × 9	1	2	1.9	T38-6410YFA
	64	2 1/2″	8 × 10	4 × 10, 1 × 9	1	4	1.9	T38-6413YFA
	70	2 3/4″	8 × 10	4 × 10, 1 × 9	1	4	2.4	T38-7013YFA

	65	2 9/16″	6 × 12	4 × 10	1	2	3.1	T38-6510YSP

T45

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	76	3″	8 × 12	4 × 11	2	2	2.2	T45-7612YFP
	89	3 1/2″	8 × 13	5 × 12	2	2	5.2	T45-8913YFP
	102	4″	9 × 12	6 × 12	–	3	6.5	T45-10215YFP
	115	4 1/2″	9 × 14	7 × 13	–	3	10	T45-11516YFP
	115	4 1/2″	9 × 14	6 × 13	–	3	10	T45-11515YFP

	76	3″	8 × 11	4 × 11, 1 × 11	–	4	3.2	T45-7613YFA
	89	3 1/2″	8 × 12	4 × 12, 2 × 10	1	4	5.4	T45-8914YFA
	102	4″	8 × 12	4 × 12, 3 × 12	–	4	7.8	T45-10215YFA
	102	4″	8 × 13	4 × 12, 4 × 12	–	4	7.8	T45-10216YFA
	115	4 1/2″	8 × 14	4 × 13, 3 × 12	–	4	7.8	T45-11515YFA

	76	3″	8 × 13	4 × 11, 1 × 11	1	4	3.5	T45-7613YSA
	89	3 1/2″	8 × 12	4 × 12, 1 × 12	1	4	4.7	T45-8913YSA

T51

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	89	3 1/2″	8 × 13	5 × 12	2	2	4.6	T51-8913YFP
	102	4″	8 × 14	7 × 12	1	2	7.1	T51-10215YFP
	102	4″	9 × 12	6 × 12	–	3	7.1	T51-10215YFP1
	115	4 1/2″	9 × 14	7 × 13	–	3	10	T51-11516YFP
	115	4 1/2″	9 × 14	6 × 13	–	3	10	T51-11515YFP
	127	5″	9 × 14	7 × 13	–	3	13	T51-12716YFP

	89	3 1/2″	8 × 12	4 × 11, 1 × 11	1	4	5.3	T51-8913YFA
	89	3 1/2″	8 × 12	4 × 12, 2 × 10	1	4	5.4	T51-8914YFA
	102	4″	8 × 12	4 × 12, 3 × 12	–	4	7.8	T51-10215YFA
	102	4″	8 × 13	4 × 12, 4 × 12	–	4	7.8	T51-10216YFA
	115	4 1/2″	8 × 14	4 × 13, 3 × 12	–	4	7.8	T51-11515YFA
	115	4 1/2″	8 × 14	4 × 14, 3 × 12	–	4	7.8	T51-11515YFA1
	115	4 1/2″	8 × 14	4 × 14, 4 × 12	–	4	10	T51-11516YFA

	89	3 1/2″	9 × 11	3 × 11, 2 × 10	1	3	4.8	T51-8914YFA2
	102	4″	9 × 12	3 × 12, 3 × 11	1	3	6.9	T51-10215YFA1
	110	4 21/64″	9 × 14	6 × 12, 2 × 11	–	3	10	T51-11017YFA
	127	5″	8 × 16	4 × 14, 4 × 14	–	4	13.5	T51-12716YFA

	102	4″	8 × 14	4 × 13, 1 × 13	–	2	10.1	T51-10213YSA
	115	4 1/2″	9 × 14	6 × 12, 4 × 12	–	3	9.45	T51-11519YSA

GT60

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	92	3 5/8″	9 × 12	9 × 12	–	2	5.1	GT60-9218YSP
	96	3 25/32″	9 × 12	9 × 12	–	2	6.5	GT60-9618YSP
	102	4″	9 × 13	10 × 12	–	2	8.5	GT60-10219YSP

	115	4 1/2″	9 × 14	10 × 12	–	3	10.8	GT60-11519YSP
	127	5″	9 × 16	10 × 14	–	3	15	GT60-12719YSP
	140	5 1/2″	9 × 16	10 × 14	–	3	15	GT60-14019YSP
	152	6″	9 × 16	12 × 16	–	3	20	GT60-15221YSP

	115	4 1/2″	9 × 16	6 × 13	–	3	15	GT60-11515YSP

ST58

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	89	3 1/2″	10 × 12	4 × 12, 2 × 12	–	4	5	ST58-8916YSA
	115	4 1/2″	10 × 14	4 × 14, 4 × 14	–	4	10	ST58-11518YSA

ST68

Appearance	Diameter		Buttons		Flushing Hole		Weight	Model No.
	[mm]	[in]	Gauge [No.] × [mm]	Front [No.] × [mm]	Side [No.]	Front [No.]	[kg]
	102	4″	10 × 12	4 × 12, 4 × 12	–	4	9.3	ST68-10218YSA
	115	4 1/2″	10 × 14	4 × 14, 4 × 14	–	4	10	ST68-11518YSA

Notice: There is a chance that SHANDIKE may make changes on above-mentioned information. Product pictures and parameters about models, data, performances and specifications on this website are for reference only.

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Jianxi District, Luoyang, China

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