1、The product is made of good‑quality high‑speed steel materials, after fine polishing treatment 2、Woodworking drill point cutter come with high finish, not easy to break, very stable 3、The product is not easy to warp during processing, realize cutting smoothly without burrs 4、Drill point cutter can be used for wood engraving, suitable for grinder machine tools 5、Engraving milling cutter come with stable structure, excellent performance and long service life Item Type: Drill Point Cutter Material: High speed steel Color: Silver Specification: 3.175x30°x0.1x40L 3.175x45°x0.2x40L 3.175x20°x0.1x40L 3.715x30°x0.2x40L 3.175x60°x0.2x40L 3.175x60°x0.1x40L Shank Diameter(D1): Approx. 3.175mm / 0.1inTotal Length(L): Approx. 40mm / 1.6in Purpose: Wood carving Applicable Machine Tool: Grinder 6 x Drill Point Cutter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia