- IRWIN 3-pack Tri-Flute bit set includes 5/8-in SPEEDBOR MAX, 3/4-in SPEEDBOR MAX and 1-in SPEEDBOR MAX, perfect for wood drilling applications
- Tri-Flute design for faster chip ejection
- Cutting spurs have 3 cutting edges for added durability
- Screw tip allows bit to self-feed for ease of use
- Grooved hex shank prevents slipping in drill chuck or bit extension
- Fits all standard 1/4 In. quick change chucks
- Includes an Irwin® Pro set case made of durable molded ABS resin, so it can hold up to anything the jobsite throws at it
- Case includes a full length metal hinge pin for maximum durability and long life, and bit identification is simple with easy to read size markings









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