Cobalt Red Helix Drill Bit Set for Drill Drivers (29-Piece)
$5.00
In stock
Category: Factory Clearance Sale
Customer Reviews (4.8 / 5 · 46 reviews)
Drilled through a stack of stainless steel brackets without any bit wandering thanks to the 135-degree split point. Running them at lower RPM in my cordless driver, they stayed cool and sharp for over 50 holes. Solid set that’ll last a while.
The quad-edge tip on these bits bites into hardened steel far better than my old set ever did. I’ve put them through a dozen holes in thick angle iron without any noticeable dulling, and the cobalt construction seems to handle the heat like a champ.
Used these to drill through stainless steel brackets that usually eat bits for breakfast—each hole was clean and fast. The cobalt material seems to hold its edge far longer than my old set. Glad I grabbed them at this clearance price.
The quad-edge tip bit into the hardened steel bracket without walking at all, which saved me a ton of time. I've drilled about twenty holes so far and the edge still feels razor-sharp.
Used these on stainless steel for the first time today. The cobalt alloy cuts way faster than my old bits, and the 29-piece set covers every size I could need.
The quad-edge tip on these bits started cutting through a stack of old brake rotors without any wandering at all. They stayed sharp after a dozen holes in hardened steel, which is way better than my old set.
Drilled through half-inch stainless steel plate without even slowing down, which surprised me since my old set would've smoked. The cobalt composition definitely makes a difference here, and the case keeps everything organized.
I was drilling into stainless steel brackets for a shelving project and these bits didn't even slow down. The precision star tip starts exactly where you place it, no walking at all.
Used these to drill through some hardened steel brackets on an old machine, and the Quad Edge tip started clean without wandering. The cobalt really held up, no chatter or heat buildup even after a dozen holes.
Tackled a thick piece of stainless steel this weekend, and the Quad Edge tip made clean holes without any wandering or excessive heat. The cobalt build feels heavy and solid, and after a dozen holes, they still look brand new.