Type AU-PL cased / extended Progressive rock auger light design
Progressive rock auger, extended version, with round shank chisels and pilot bit.

Effective length | 2,500 mm |
---|---|
Diameter | 520 - 1,840 mm |
No. of cutters | progressive |
Pilot | Round shank chisel |
Connector | Kelly box - 200 mm Spanner width |
Casing | cased |
Range of application | Medium-hard to hard rock up to 100 MPa |
Equipment | Kelly box 200 x 200 mm, round shank chisels densely mounted on the progressive auger part, round shank chisel pilot bit, easily exchangeable hard metal wear plates and hardfacing as wear protection |