Rock drilling tools: Adapter Coupling, Cross-over Adapter Coupling, coupling sleeves

• Used when changing from one thread type, or size, to another and are typically required only in special circumstances
• Crossover adapter ( MF adapter coupling ),  T38F/ R38M-260
• Coupling sleeves:  Crossover adapter ( MF adapter coupling ), T45F/T38M-260.

Coupling sleeves, other name is Coupling, when using rock drills with male shank adapters and a conventional drifter rod, a coupling is required to join the adapter to the rod,ensuring the ends touch for efficient energy transmission. Couplings are also used to connect several rods to each other in the same way. Couplings have a middle stop to prevent over-threading on to the drill rod. We can manufactures semi-bridge, full bridge coupling sleeves for the percussive tools. 

Main Products:

1-12 inch middle-low/high air pressure DTH hammers & bits
Big hole high air pressure DTH hammer using in water well, oil, gas and construction drilling 
Eccentric overburden drilling Equipment 
Hole opener bit 
Rock thread bit (R22, R25, R28, R32, R35, R38, T38, T45,T51, ST58,GT60)

Extension Rod, M/F Rod, M/m Rod, Drift Rod,
Shank adapter, coupling sleeves and all kinds of adapters 
Advantages:

Compared with the oversea brands, our advantages are bellowing:

a. Our products can match over 95% against the original products

b. Price are competitive against the famous brands and best quality against the small factory 

About Us:

1.    Our factory has been specialized in manufacturing drilling tools and spare parts for over 10 years.

2.    We have advanced technology and equipment.

3.    Our technician has more than 13 year's professional working experience.

4.    Rock drilling tools are exported throughout the world. Main market: Norway, Turkey, USA, Canada, Australia, Brazil, Uruguay, Iran, Philippines, Thailand, India, etc.