2-3/4" x .144" 72T 1" Bore HSS Screw Slotting Cutter FlangeNutF7/16Z The unique annular (hollow design

The unique annular (hollow design allows Twister Bits to cut up to 4x faster than spade and twist drills

The combination three mounting holes gives a wide range of boring capacities

Stable over a wide variety of water conditions

stainless steel

Non-slip handle

2-3/4" x .144" 72T 1" Bore HSS Screw Slotting Cutter FlangeNutF7/16Z The unique annular (hollow design2 3 4 x . 144" Screw Slotting Cutter Screw Slot Cutters are mini slitting saws designed, as the name implies, designed for shallow cuts such as slotting screw and bolt heads or machine slots into work pieces M 2 Grade High Speed Steel Concave ground sides insure proper side relief Diameter 2 3 4" Bore diameter 1" Thickness . 144" 72 teeth