Review on 🔧 IRWIN SPEEDBOR 341008 8-Piece Groove Bits Set by Chris Sanders

I have used these bits for drilling studs for rough wiring. They seem to drill much faster than traditional bladed drills and leave fairly clean exit holes. I was pleasantly surprised at how well they hold up after hundreds of holes. Unfortunately they don't hold up at all if you hit a hidden nail. While hitting a nail will simply "wind up" a regular paddle without spurs (which can usually be resharpened), accidentally hitting a nail with one of them will immediately break off both spurs. Luckily, replacement parts to fill the kit are available at a reasonable price, so this isn't too much of a problem. Because I combined this set with 6" and 12" hex extensions. my hole hawg and drill collect a lot more dust on the shelf. The bulletproof case is a nice addition to the solid bit set.