Irwin 3-Piece Speedbor MAX Spade Bit Set - 3041003

Tri-Flute design for faster chip ejection. Cutting spurs have 3 cutting edges for added durability. Full screw tip allows bit to self feed. Grooved hex shank prevents slipping in drill chuck. Fits all standard 1/4" quick change chucks. Comes with heavy-duty case. Set includes: 5/8", 3/4", 1". Comes with a heavy-duty case.