Works on Most Materials: Perfect for common uses such as drilling holes in tiles, 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 x 6 mm, 1 x 8 mm, 1 x 10 mm, 1 x 12 mm. When drilling hard materials (stainless steel, glass, porcelain tiles, marble or granite), use water for lubrication and cooling. Makes work easier. We strive to create the best products to make our customers' lives more convenient and safer. Our mission: to develop reliable, portable, durable and quality products. Our products are checked by a team of professionals focusing on every detail that matters to you. Features: - Spear-shaped tip, for smooth and precise drilling. - High-quality YG8X carbide tip. - Double groove for faster drilling and dust removal. - Strong and durable, high quality. - Innovative shape. Product Specifications: Material: YG8X carbide. Shank: 3 flats. Color: Gold and silver. Included: Transparent plastic box. Quantity: 2 x 6 mm, 1 x 8 mm, 1 x 10 mm, 1 x 12 mm. For: Tile, concrete, brick, marble, glass, plastic, wood, cast iron, stainless steel, aluminum profile, etc. Notes: - Using an electric drill under 24 V may negatively affect the result. - When drilling hard materials (stainless steel, glass, porcelain, marble or granite), please use water for lubrication and cooling. Quantity delivered: 5 pieces become very rich