Wholesale Discount Rock Drill Botton Bit - Coupling Sleeve – TDS

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Wholesale Discount Rock Drill Botton Bit - Coupling Sleeve – TDS Detail:

Because of different applications, we need different lengths of drill stems, so couplings sleeves are used for connecting extension rods. There are semi-bridge couplings and full bridge couplings, the only difference between them is that semi-bridge couplings have a middle stop at the middle of couplings. Usually couplings two ends are the same couplings, like R25, R32,R38,T45, T51, etc .While sometime people need crossover couplings to work, for example, one end is R32 and another end is R38, but basically all couplings are female threads at the two ends.

Connection	Length	diameter	Connection
Connection
D1			D2
	mm	mm
R22	100	32	R22
R32	160	48	R32
R32	170	55	R32
R25	160	37	R25
R38	170	55	R38
T38	190	55	T38
T45	210	64	T45
T51	225	75	T51
T38	185	55	T38

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Our eternal pursuits are the attitude of "regard the market, regard the custom, regard the science" plus the theory of "quality the basic, have faith in the main and management the advanced" for Wholesale Discount Rock Drill Botton Bit - Coupling Sleeve – TDS , The product will supply to all over the world, such as: Cambodia, Malta, Istanbul, We are proud to supply our products to every costumer all around the world with our flexible, fast efficient services and strictest quality control standard which has always approved and praised by customers.

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