R28 Drifting & Tunneling Tools

R28 (1 1/8″) bit thread, Button bit diameter: 38mm, 41mm, 43mm

Cross bit diameter: 38mm, 41mm

Reaming bit, 6° taper, bit diameter: 64mm, 76mm, 89mm

Pilot adapter,  6° taper, R28 thread, diameter: 26mm

Drifter rod, R32-Hex28-R28, length: 2400mm, 2750mm, 3090mm, 3700mm, 4310mm

Coupling sleeve, R32, 150mm length