General description DeWalt's Extreme Irwin Blue Groove 3 Piece 152mm Auger Bit Set is designed for high performance and durability. This set features impact-rated bits with 1/4 hex shanks, making them compatible with impact drivers and standard drills. The tri-flute design allows for up to 6x faster cutting and efficient chip removal, while the full screw tip ensures self-feeding for ease of use. Technical specifications Length: 10 cm Sizes: 16 mm, 20 mm, 25 mm Material: Heat-treated steel Design: Conical flute for reduced binding Compatibility and accessories Compatible with standard drill chucks Suitable for use with various types of power drills Quick-change 1/4 hex shanks Installation Insert the drill bit into the drill chuck and tighten securely Ensure the drill is set to the appropriate speed for the material being drilled Usage Ideal for drilling clean holes in wood, beams, or metal surfaces Apply steady pressure and avoid overheating the bit Suitable for holes up to 5 cm (2