There was some rust on the new item during storage. It will come off quickly with use. Suitable for digging holes in frozen surfaces and hard places. The specifications of MAXSCP-400 are as follows: Total length: 400mm, Width: 110mm, Material: Chrome vanadium steel, Shank shape: SDS-max shank. Compatible with models from Hitachi, Hilti, Bosch, Makita, Ryobi, etc. I am retiring and will give it away.