IRWIN Woodboring Drill Bits 17-Piece 1/4-in Woodboring Spade Drill Bit Set

This SPEEDBOR blue groove spade bit set features blue groove point and cutting edge for faster chip removal. The double cutting spurs scribe the outside of the hole reducing breakout.

• 10% Larger shank for added durability
• Grooved hex shank prevents slipping in drill chuck or bit extension
• 1/4-In, 5/16-in, 3/8-in, 1/2-in, 9/16-in, 5/8-in, 3/4-in, 13/16-in, 7/8-in, 15/16-in, 1-in, 1-1/8-in, 1-1/4-in, 1-3/8-in, 1-1/2-in bits included
• Long lasting
• Handy carrying case includes holder for each bit and Velcro snap to keep them secure