General description The Faithfull FAIGDSET4 is a set of 4 drill bits specifically designed for drilling glass, mirrors, bottles, and ceramics. These drill bits are suitable for use with variable speed drills and feature extremely hard tungsten carbide spear tips for efficient cutting. Technical specifications Set includes 4 drill bits in sizes: 3mm, 4mm, 5mm, and 6mm Material: Tungsten carbide tips for durability and precision Compatibility and accessories Designed for use with standard variable speed drills No additional accessories required Installation Insert the desired drill bit into your drill chuck and tighten securely Ensure the drill is set to low speed before starting to drill Usage Mark the drilling point on the material Lubricate the area with water to reduce heat and friction Drill at low speed with light pressure, keeping the drill and material steady Other information Keep the drill bits clean and dry after use to maintain their sharpness and durability Note: Lubricate