Tapered Drill Rod
Taper: 4° 46', 6°, 7°, 11° and 12°
Effective length: 400mm-4800mm
Shank: H22 X 108mm, H25 X 159mm
Quality aircraft alloy steel , state of art manufacturing, multiple precise heat-treatment.
Maximum wear resistance, longest lifespan and outstanding performance in roughest working conditions.
