5 Lathe Mill Center Drill Countersink Bit Tooling Set Countersink Drill Bit
[Sizes]: 1, 2, 3, 4 and 5, 60?? tip angles.
[Material]: Made of high-quality high-speed steel, the hardness and service life of tapping itself are greatly improved, the wear resistance and corrosion resistance are increased, and the precision clamping is stable.
[Features]: All surfaces are precisely ground to achieve better use effect.
[Available for all Kinds of Materials]: Metal, Alloy, Copper, Iron, Wood, Aluminum, and so on.