Features Superior Durability: Crafted from high-quality alloy steel with overall heat treatment, this drill bit ensures long-lasting performance and reliability for all your woodworking projects Efficient Wood Chip Discharge: The U-shaped long chip flute design facilitates easy removal of wood chips, enhancing drilling efficiency and minimizing downtime during use Stable Cutting Performance: With the cutting edge force aligned on the same plane, this design prevents bursting at the start, providing a stable and controlled drilling experience Versatile Compatibility: The circular design of the drill tail allows for secure clamping, making this tool compatible with square hole drills and square tenon machines for versatile applications Ideal for Various Wood Materials: Perfect for drilling into density boards, medium fiber boards, and particle boards, this tool meets the needs of all your woodworking tasks Features: 1、OVERALL HEAT TREATMENT: The drill bit is made of alloy steel section, the overall heat treatment bring high hardn and long service life 2、CONVENIENT FOR WOOD CHIPS DISCHARGE: U shaped long chip flute design is convenient for the discharge of wood chips and improves drilling efficiency 3、AVOID BURSTING: The force of the cutting edge of the drill bit is on the same plane, and the effective protection can avoid the situation of bursting at the beginning of use, very stable 4、USE WITH SQUARE HOLE DRILLS: The drill tail adopts a circular design, which makes the clamping more stable. Can be used with square hole drills and square tenon machines 5、FOR WOOD PRODUCTS: Suitable for drilling wood products such as density board, medium fiber board, particle board, wood and so on Specification: Item Type: Square Hole Mortiser Drill Bit Material: Bearing steel + alloy steel Uses: Suitable for wood products such as density board, medium fiber board, particle board, wood, etc. Suitable for square hole drills and square tenon machines Shank Type: Round shank Package List: 1 x Square Hole Mortiser Drill Bit 1 x Drill core Note: Please bring protective gear when drilling to prevent the debris from splashing and hurting yourself. Package List 1 x Square Hole Mortiser Drill Bit 1 x Drill core