Review on 🔩 IRWIN 91140 8 Inch Silver Deming: Premium Quality Industrial Drill Bit with Precision and Power by Eduardo Reyes

> Although the drill is nominally 12 inches long, it would be more accurate to describe it as 2 3/4 inches long plus a 9 1/4 shank. Other long drill bits I've bought from other manufacturers were about 9" long with a 3" shank. To drill a 6" deep hole with a 9" twist drill bit, you must clean the spirals at least once (to minimize the possibility of jamming, especially on hard or wet wood). But with the Irwin 62116 you have to broach deep holes much more frequently, about every 1 inch, and that makes a difference, not just "good technique". > If you just need to drill a pitched hole less than 2" deep - like drilling the short side of a 2x4 soft pine for cable routing - then an Irwin 62116 bit should work adequately. . A long shank (and short drill thread) can even be a good feature for this application, as a solid shank is stronger. Bought. Since I only get to use such a drill once every 5 years, it's good to have a protective plastic case. A quick spray of WD-40 will protect such a drill from rusting if you put it in a plastic case. That's a good idea. > MY EXPERIENCE -- I wanted to drill 6" deep holes in roof joists to inject termite spray. The Irwin auger worked so poorly for this purpose that I eventually gave up and used a standard auger instead and went for it 3-4" deep holes decided. > Click on "Stoney" just below the product name to see my other reviews. Leave a comment to ask a question