🔹🔹. Rotary Grinding Drill Bits fits most of electric machine,rotary tool, and grinders. Please verify the picture size carefully before order.
🔹🔹. 60 Grit Coarse grinder bits great for Grinding /smoothing most of hard material ,such as iron ,glass, ceramics, tile, brick, fiberglass, stone, rock carbide, gold, platinum, silver, metals.
🔹🔹. Sphere, cylinder, bullet, Inverted trapezoid head shape helps do different work like drilling holes, grinding, carving and etching .
🔹🔹. Good gift for DIY enthusiast hobbyist or craft fan, wear-resistant, maintain sharpness, not easy to fall off. (Note: use water for coolant, keep drill Smooth rotation).