- High-performance ground standard twist drill made from heavy-duty high speed steel. - The fully ground twist drill has a precise concentricity. - Thanks to the split point, this drill has good centring properties and requires little pressure.
- Discs with thick and resin joints with top quality Silicon Carbide grain; - Packaging: Boxes of 25 pcs in 5 retractable films of 5 pcs/each; - We suggest to use it with a rubber backing pad.
- Easy and accurate positioning of hole, reduced risk of walking. - Water greatly improves drill bit life and drilling speed. - Central core created during drilling stops drill wandering, core can be removed easily through core ejection slot
