Polished cutting edge Compatible With reduced friction. High hardness and sharp, perfect Compatible With drilling the extra thick wood.Perfect Compatible With wooden planks,fiberboard,particle board,plywood,plastic,alumiumn board ,pcb board and more.Chamfered Cutters Cut the plug from an offcut Compatible With perfect timber match.Perfect Compatible With hiding screw heads and damage repair . Also great Compatible With projects requiring decorative plugsAble to cut plugs to 22mm/23mm/25mm/26mm in lengthSurface treatment:Titanium CoatedHandle diameter: 1/4inch hex shankSize:1/4inch(6mm),5/16inch(8mm),3/8Inch(9mm),1/2inch(12mm),5/8inch(16mm),3/4inch(19mm)Color: gold + silverMaterial: steelPackage Content: 6* 1/4inch countersunk bit4* straight drill4* claw drill7* round shank drill1* center punchingOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.