Irwin 1862932 Drill Bit HSS, Titanium Nitride, 5-1/2" x 7/16" Pan Head Self Powder coat finish resists rust

Powder coat finish resists rust and corrosion

This fan is more effective than roof louvers or turbine style vents

& holes in roofing materials

Width x Length : 4 x 200

Controls volume or a shut off

Irwin 1862932 Drill Bit HSS, Titanium Nitride, 5-1/2" x 7/16" Pan Head Self Powder coat finish resists rustHighlights: 7 16" straight shank 135 degree split point 4 1 16" flute length 5 1 2" overall length Tin coated bits lasts up to 6 times longer than standard HSS Recommended use on the following materials: mild steel, high alloy steel and stainless steel Also acceptable to use on wood, drywall, sheet metal and cast iron Carded Cancer and Reproductive Harm www. P65Warnings. ca. gov.