Irwin Speedbor 1x 6 in. Spade Bit features a Blue-Groove point and cutting edge designed for faster chip removal, enhancing your drilling efficiency. Its double cutting spurs carefully scribe the outside of the hole, which helps reduce breakout and ensures cleaner results. The bit also boasts a 10% larger shank, providing added durability for extended use. This spade bit measures 1 inch in size with a 6-inch length and a 1/4-inch shank diameter, making it a reliable choice for your woodworking needs. Model Number: 88816