- [Wide application]: Suitable for workpieces with hardness less than 65HRC, such as stainless steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board, etc.
- [Efficiency]: It has a one-piece design, which makes the chips generated during the chamfering process more convenient, and will not delay work efficiency due to tool blockage.
- [Grinding function]: The blade can be ground, and a more convenient maintenance method allows the tool to be ground without unloading.
- [Ease of use]: The automatic through-hole chamfering cutter can quickly trim and chamfer both sides of the hole in a few seconds.
- Not recommended to use hand drills.Size : 6.3mm(1/4”), 8.3mm(5/16”), 10.4mm(2/5”), 12.4mm(1/2”), 16.5mm(5/8”), 20.5mm(4/5”).Shank: round shank.Great gift for man DIYer . Don’t settle for less – choose our Countersink Drill Bit for a superior drilling experience.