7 Pieces Indexable Lathe Turning Tool Holder, 3/8 in, CNC Heavy-Duty Metal Lathe Cutting Tools, with Tin Coated Carbide Inserts Aluminum Case, for Turning Grooving Threading Cut Off Holders Se 7 Pieces Lathe Turning Tools Upgraded Aluminum Case User-Friendly Design High-Quality Materials Versatile Applications Easy Installation & Operation Primary Materials: 40Cr, GW3025,Item Model Number: 3870,Product Dimensions(L x W x H): 182 x 143 x 52 mm