22mm and 25mm rubber collar drillsteel at 7°, 11° or 12 taper. These can be supplied in any length up to 6m. Refurbishment of used drillsteel also available until it reaches the minimum cut off diameter.
Forged collar steel in both 22mm and 25mm hex at 7°, 11° or 12° taper. This steel can be either 108mm or 159mm shank length. Common sizes range from 330mm to 1200mm for roof bolting applications to 4m lengths for granite quarries.
Forged collar drillsteel with short shanks for roof bolting applications.