High-quality Black Thread T38 Drill Semi Bridge Coupling Sleeve - Length 7 1/2 Inch, Diameter 55mm

Condition	New	Color	black or Customized
Applicable Industries	Construction works , Energy & Mining, Tunneling	Diameter	45MM-76MM
Video outgoing-inspection	Provided	Thread Type	R25,R28,R32,R38,T38,T45,T51
Machinery Test Report	Provided	Key words	Coupling Sleeve
Brand Name	Jcdrill	Application	Mining / Quarrying / Tunneling/Blasting
Type	Drill Sleeve	Length	150MM-235MM
Machine Type	Drilling Tool	Formation	Hard / Medium hard / Soft Rock Formation
Material	Carbide	Bridge type	Semi-bridge / Full-bridge
Processing Type	Forging	Raw Material	High quality alloy steel
Use	Mining

T38
Drill Bit	Bit Dia.		NO x Button x Dia.			Flushing Hole		Weight
Drill Bit	mm	inch	Front	Gauge	Angle	Front	Side	（KG）
	spherical Buttons
	64	2 1/2	3x11	6x12	35°	3		1.8
	64	2 1/2	4x10,1x10	8x10	40°	2		1.6
	64	2 1/2	3x10,1x10	6x11	35°	3		1.7
	70	2 3/4	4x11	8x11	40°	2		1.9
	70	2 3/4	4x10,1x10	8x11	30°	4		1.9
	70	2 3/4	3x10,1x10	6x12	35°	3		1.8
	76	3	4x11	8x11	40°	2		2.4
	76	3	5x11	8x13	35°	2	1	2.4
	76	3	3x11,1x11	6x12	35°	3	1	2.6
	76	3	4x11,1x11	8x12	35°	4		2.6
	76	3	4x11,1x11	8x11	40°	4		2.6
	89	3 1/2	4x13	8x13	40°	2		3.3
	89	3 1/2	5x13	8x13	35°	2		3.3
	89	3 1/2	6x11	8x12	35°	2		3.3
	89	3 1/2	3x11,2x11	6x12	35°	3	1	3.3
	89	3 1/2	4x11,1x11	8x13	35°	4		3.3
	89	3 1/2	4x13,1x13	8x13	35°	4		3.3
	Parabolic Buttons
	64	2 1/2	3x11	6x12	35°	3		1.8
	64	2 1/2	4x10	8x10	40°	2		1.6
	64	2 1/2	3x10,1x10	6x11	35°	3		1.7
	70	2 3/4	4x11	8x11	40°	2		1.9
	70	2 3/4	3x10,1x10	6x12	35°	3		1.9
	76	3	4x11	8x11	40°	2		2.4
	76	3	5x11	8x13	35°	2	1	2.4
	76	3	3x11,1x11	6x13	35°	3	1	2.6
	76	3	4x11,1x11	8x12	35°	4		2.6
	76	3	4x11,1x11	8x11	40°	4		2.6
	89	3 1/2	5x13	8x13	35°	2		3.3
	89	3 1/2	6x11	8x12	35°	2		3.3
	89	3 1/2	3x11,1x11	6x13	35°	3	1	3.3
	89	3 1/2	4x11,1x11	8x13	35°	4		3.3
	89	3 1/2	4x13,1x13	8x13	35°	4		3.3
Drill Roll				Length		Dimaeter		Weight
Drill Roll				mm	inch	mm	inch	（KG）
				1220	4'	39	1 1/2	10.2
				1525	5'	39	1 1/2	12.8
				1830	6'	39	1 1/2	15.3
				2435	8'	39	1 1/2	20.4
				3050	10'	39	1 1/2	25.5
				3660	12'	39	1 1/2	30.9
				3965	13'	39	1 1/2	33.2
				4270	14'	39	1 1/2	35.7
				4880	16	39	1 1/2	41
				5530	18'11/2''	39	1 1/2	46.3
				6095	20'	39	1 1/2	50.9
				915	3'	39	1 1/2	10.7
				1220	4'	39	1 1/2	13.3
				1525	5'	39	1 1/2	15.8
				1830	6'	39	1 1/2	18.3
				3050	10'	39	1 1/2	28.5
				3660	12'	39	1 1/2	33.6
				4270	14'	39	1 1/2	38.7
				4880	16'	39	1 1/2	43.7
				5530	18'11/2''	39	1 1/2	49.2
				6095	20'	39	1 1/2	53.9
				1220	4'	32	1 1/4	8.6
				1830	6'	32	1 1/4	12.6
				2435	8'	32	1 1/4	16.6
				3050	10'	32	1 1/4	20.8
				3660	12'	32	1 1/4	24.9
				3050	10'	46	1 3/4	25.7
				3660	12'	46	1 3/4	30.9


				1830	6'	46	1 3/4	23.5
				3050	10'	46	1 3/4	37.2
				3660	12'	46	1 3/4	44
				4270	14'	46	1 3/4	50.9
				4880	16'	46	1 3/4	57.7
				5530	18'11/2''	46	1 3/4	65
				6095	20'	46	1 3/4	71.3
Coupling				Length		Dimaeter		Weight
Coupling				mm	inch	mm	inch	（KG）
				190	7 1/2	55	2 1/6	2.1

Minimum Order Quantity	N/A
Price
Packaging Details	Standard Export Delivery Package
Delivery Time	7days
Payment Terms	T/T
Supply Ability	Based on Detailed Order

T38 Mining Coupling Sleeve Rock Drilling Tools Description

Coupling Sleeve using T38 thread system T38 thread system Color: Black or Based on Customer requirements Material: Tungsten carbide and high strength alloy steel Processing: CNC milling and proprietary heat treatment process Applications • Underground Mining • Widely used in drifting and tunneling Used in small hole drilling. Competitive Advantage High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance Couplings sleeve are used to well connect the shank adapter to the drill rods or well contact two extension rods for transmitting energy. It has standard type coupling and crossover coupling.