➤ Made of high quality steel, high hardness, good wear resistance. High precision, the precision is 0.010. Mainly can be used for grinder, milling machine, lathe, drill, etc. The upper locally fixed alloy is mainly used for machining the shaft, the sets of parts. The positioning of the centre hole increases the precision of the parts. ➤The upper solid alloy is mainly used for machining shafts and parts sets. The positioning of the centre hole increases the precision of the parts. Stable performance, high precision. We care about the feeling of every customer. You can contact customer service if you have any questions., Weight: 0.220462262 pounds, Manufacturer: Hililand