Product Description

Grooved hex shank prevents slipping in drill chuck or bit extension

The Irwin Speedbor 3-Piece 5/8-Inch, 3/4-Inch and 1-Inch Max Spade Bit Set features three speedbor spade bits that all deliver a state-of-the-art Tri-Flute design. All the included bits produce a fast chip ejection, while also providing cutting spurs with three cutting edges for added durabilty. A full screw tip allows the bits to self feed, and grooved hex shanks prevent slipping in drill chuck or bit extension. Additionally the bits all fit standard 1/4-inch quick change chucks.