High Speed Steel Countersinks, 1/2-inch diameter, milled and precision ground to countersink into any machinable material including iron, steel, soft metals, plastics or wood.

Self Starting Bit Features Single Flute Cutting Edge For Greater Control Through Steps; Three Flatted Shank Prevents Slipping In Drill Chuck.

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.

Tri-Flute Design For Faster Chip Ejection, Cutting Spurs Have Three Cutting Edges For Added Durability, Full Screw Tip Allows Bit To Self Feed.

The Irwin Speedbor 1-1/4-by-6-Inch Max Spade Bit is a fast speedbor spade bit that features a Tri-Flute design with a fast chip ejection.

Cutting Spurs Have Three Cutting Edges For Added Durability, Full Screw Tip Allows Bit To Self Feed, Tri-Flute Design For Faster Chip Ejection, Grooved Hex Shank Prevents Slipping, Fits All Standard 1

The Irwin Tools 3041017- 13/16" X 6" SPEEDBOR MAX Drill Bit is the Fastest Speedbor spade bit ever. Tri-Flute design for faster chip ejection. Cutting spurs have 3 cutting edges for added durability.

Cutting Spurs Have Three Cutting Edges For Added Durability, Full Screw Tip Allows Bit To Self Feed, Tri-Flute Design For Faster Chip Ejection, Grooved Hex Shank Prevents Slipping, Fits All Standard 1