... riffle bar, 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 on.eg: Riffle bar, ... , Chuck sleeve, etc. crawler drill,crawller drill, drilling, drifter, hammer, hamma, drilling rig,drill rig, rock drilling, ... striking bar, strike bar, accumulator, front head, back head, rotation motor