Set of 3pcs Qiangsheng Luban Mortising Chisels - Fine WoodworkingThe chisel is designed in trapezoidal shape, suitable for precise processing and cleaning of mortises.3PCS = 1/4“,3/8”,1/2“ widthFeatures- Material of blade: High grade CRV- Hardness of blade : 58-63- Material of ferrule:stainless steel- Total length 28-29cm- Length of the handle 12cmFor other models of Luban Planes, click on the link.