ITEM NAME:4 5 6 8 10mm Quick Change Metal Tool 1/4inch Hex Shank Wood HCS Drill EDP.1/4" (6.35mm)Hex Shank. Fits All 1/4" Hex Cordless Screwdrivers. A set of 5 sets of 1/4 hex handle three-point woodworking drill. Size:4, 5, 6, 8, 10mm. We'd like to settle any problem in a friendly manner.