Irwin 3041003 SpeedBor Maw Woodboring 3 Drill Bit Set This drill bit designed for wood boring projects. It features high grade durable construction. 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 Features Standard Length Speedbor MAX Spade Bits The Fastest Speedbor spade bit ever Tri-Flute design for faster chip ejection Cutting spurs have 3 cutting edges for added durability Full screw tip allows bit to self feed USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.