HSS Tapered Countersink Drill Bit Set 1/4" Hex Shank Carpentry Reamer Stop Collars Screw Hole Drill Chamfer Woodworking Tools

[Feature]: The drill bit is made of high speed steel HSS 4241 and the chamferer is made of 45# steel. The chamferer is equipped with adjusting screw, which can control the drilling depth. At the same time, it also takes into account the chamfering effect, which is convenient and efficient. [Specification]: Application: suitable for woodworking Material: the drill bit is made of high speed steel and the chamferer is made of high carbon steel Handle type: 1 / 4 hexagonal handle (6.3mm) 5Pcs: 7/64, 9/64, 11/64, 3/16, 7/32 7Pcs: 11/64 * 7