Rock drill bits factory Litong offers a wide of threaded drill bit as per different thread type, diameter, skirt body, face, and carbide shape as for your drilling job.

R22, R25, R28 Threaded Button Bits,

Main Diameter 40mm, 41mm, 43mm, 45mm.

Carbide shape: Dome, Ballistic , Semi-Ballistic,

Skirt body : Standard

Used in drifting and tunneling, or dimensional natural stone quarrying

To match shank rod, and MM Hex drifting drill rod for light-duty top hammer.

Drift rod size : R32-R28-H28 2600mm, 3100mm

Rock Drill Bits: R Thread Button Bits

Has good wear properties

• It is ideal for single pass or short hole drilling such as underground tunneling application that require infrequent uncoupling

• It is available in sizes 38 mm40mm, 41mm, 43mm, 45mm.