[Application]: Drill accurate center holes in material prior to turning, or use as a starter bit for accurate holes.

[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 precision ground to achieve better use effect.

[Available for all Kinds of Materials]: Metal, Alloy, Copper, Iron, Wood, Aluminum, and so on.