Irwin Speedbor 7/16 x 6 in. Spade Bit features a Blue-Groove point and cutting edge designed for faster chip removal, making your drilling tasks more efficient. Its double cutting spurs precisely scribe the outside of the hole, which helps reduce breakout for cleaner results. The bit also boasts a 10% larger shank, enhancing durability and providing a secure fit in your drill. With a bit size of 7/16", a length of 6", and a shank diameter of 1/4", this spade bit is packaged individually on a card for easy handling and storage. Model Number: 88807