Coupling sleeve

Material: Structural Alloy Steel
Type: Standard Couplings (Semi bridge Couplings), Full bridge Couplings, Crossover Couplings (Adapter Couplings, Reduction Couplings, Reducer Coupling)
Thread: R32, R38, T38, T45, T51,ST58,GT60,EL60
Diameter: 38-80mm
Length: 440-790mm
Color: customized
Package: wooden crates, cartons, plastic boxes
Application: Tunneling , Mining , Quarrying, Blasting and Infrastructure Construction, Facedrilling and Bolting, Bench Drilling, Production drilling, Long hole drilling, Drifting
Suitable Machine: Hydraulic drill rig, suface drill rig, face drill rig
Custom: Length, diameter, thread can be customized according to client's requirement and drawing.

Feature

1. The material of the hollow drill steel are produced by ourselves with strict quality control system
2. Rich production experience and market feedback data from clients
3. High toughness and high wear resistance
4. OEM for many global rock tools companies in the world
5. Big capacity, stable quality, short leading time, good price