About this item

Works on Most Materials: Perfect for common uses such as drilling holes in tile, concrete, brick, marble, glass, plastic, wood, cast iron, stainless steel, aluminum profile, etc Heavy Duty Drill Bits: This drill bit set features a high-quality YG8X carbide spear tip to prevent slipping or sliding and can easily penetrate various materials without breaking them Work Easier: Thanks to the innovative shape of these copper-plated double-groove drill bits, you can drill faster and remove dust, thus working faster 5 drill bits with 4 different sizes: 2 × 6 mm, 1 × 8 mm, 1 × 10 mm, 1 × 12 mm When drilling hard materials (stainless steel, glass, porcelain tiles, marble or granite), use water for lubrication and cooling..