Features:Heat treated arbon steel for strengthSuitable for all hand and power drills ontains all ular sizes of ountersink bitsSpe ifi ations:Material:High arbon SteelSize: 1/4" 12mm 16mm 19mm olor:Si erPa kage In luded:1 * ountersink Power Drill Bit Bore SetNotes:1. Due to the differen e between different ,the pi ture may not refle t the a tual olor of the item. We guarantee the style is the same in the pi tures.2. Due to the manual measurement and different measurement methods, please allow 1-5mm deviation. Thanks! a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a