Item Name: Countersunk Bits Titanium Plated Chamfering Woodworking Hex Shank Drill Bit. Standard hex shank is quick change compatibleWeight: 80 gramsDiam: 5-12 mm (body), 6.35 mm (shank)Drill and countersink for wood screws without changing bitsLength: 20 mm (body)Adjustable counter sleeve depth with Allen wrenchSpecification: #5, #6, #8, #10, #12Drilling length can be adjusted for various length screws simply by loosening and tightening the setscrewMaterial: high carbon steelSpecial designed steel counter sleeve countersinks or counter bores pilot holePacking:1Set Due to the difference between different monitors,the picture may not reflect the actual color of the itemPlease allow 0.1-1cm differs due to manual measurement,thanks *Please make