... , riffle nut, chuck sleeve, etc. Pneumatic Drifter Spare Parts ( All Kinds )We are making the spare parts for crawler drill, drifter, rock drill and so ... nut, Chuck sleeve, etc. crawler drill,crawller drill, drilling, drifter, hammer, hamma, drilling rig,drill rig, rock drilling, rock drill,mine ... ,shank rod,shank adapter, striking bar, strike bar, accumulator, front head, back head, rotation motor