Irwin 1862932 Drill Bit HSS, Titanium Nitride, 5-1/2" x 7/16" *jamb Resistant to stress cracks

Resistant to stress cracks

Blade Material: Metal

CFM : 4100

Convenient orange twist-cap eliminates need for wrench adjustment

Rugged all-in-one mailbox and post that's weather and vandal resistant

Irwin 1862932 Drill Bit HSS, Titanium Nitride, 5-1/2" x 7/16" *jamb Resistant to stress cracksHighlights: 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.