Set of 10 steel drill bits, suitable for tiles, glass, ceramics, marble and mirrors 6mm tungsten carbide drill bit, suitable for hard and brittle materials.

【Material: Alloy Steel】: This drill bit set is forged from high-quality alloy steel. The glass drill bits allow for precise and clean drilling in tile, marble, mirrors, glass, aluminum, concrete, and wood. For optimal results, this durable drill bit requires ample lubrication. It is recommended to rinse the drilled surface with clean water. 【Dimensions】: This multi-material drill bit has a sharp 6mm point and a 6.35mm (1/4 inch) diameter for better break resistance. Length: 70mm, shank diameter: approximately 4.76mm (3/16 inch). Our spear-point drill bits are robust, durable, and offer a long service life. 【Use】: Ideal for drilling tile, glass, marble, and mirrors. For drilling hard materials, lubricate with water. Proper cooling will extend the drill bit's lifespan. Glass drill bits are generally used with a power drill to drill all the materials mentioned above. [Tungsten Carbide Drill Bits]: Made of tungsten carbide, ceramic drill bits offer increased efficiency and a longer lifespan. During drilling, the coating rubs against the glass, creating a perfect hole in the material. [Product Contents]: The package contains 10 x 6mm glass and tile drill bits, as well as a plastic storage box for easy transport. The drilled holes are smooth, straight, and have an ideal texture.