Irwin 3046010 Speedbor Max Self Feed Bit, 2" Saute Good choice and value for

Good choice and value for medium grit dry sanding and finishing aluminum

for example

Type: Style B

070"W x DM-5/8"

Dimensions : 17-1/2" x 8-1/2" x 6"

Irwin 3046010 Speedbor Max Self Feed Bit, 2" Saute Good choice and value forHighlights: For drilling large diameter holes in wood for pipe, conduit and other applications Replaceable coarse screw point drills quickly in dry, wet, and gummy wood All bits have a 7 16in hex quick change impact shank that fits 1 2in or larger electric drills or 7 16in hex impact wrench drills Precision milled shank eliminates runout and wobble Forged in one piece from high carbon steel for maximum strength under tough drilling conditions Ideal