IRWIN, 3046012, Forstner Drill Bit, 2-1/4 in; 3-Cutter; 7/16 in Quick Change Shank

2-1/4" diameter, Speedbor max self feed wood drill bit, 3 times the cutting area and edges of standard self feed bits, 7/16" Hex quick change impact shank fits 1/2" or larger drills, also fits 7/16" Hex impact wrench drills, for drilling large diameter holes in wood, aggressive screw Pitch, precision milled shank eliminates run out and wobble, forged in 1 piece from high carbon steel for max strength under tough drilling conditions, ideal for pipe & conduit systems, Carded.

Features

• Aggressive screw pitch
• 3X cutting edges extends bit life compared to standard IRWIN self-feed bits
• 7/16" quick change impact shank

• Diameter: 2-1/4 in
• Number of Cutters: 3
• Shank Size: 7/16 in
• Shank Type: Hex Quick Change
• Length: 7.000 in
• Height: 4.000 in
• Width: 3.800 in
• Weight: 0.730 lbs
• Material: High Carbon Steel
• Country of Origin: China