Irwin 3046010 Speedbor Max Self Feed Bit, 2" Saute for example

for example

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

naturally infused oil binds the product together

Includes: 5 aluminum tubes

Irwin 3046010 Speedbor Max Self Feed Bit, 2" Saute for exampleHighlights: 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