The MILWAUKEE RED HELIX Cobalt 5/64 in. Drill Bit are engineered for extreme durability and longer life in hard metal applications. The Milwaukee Cobalt drill bits are designed with a VARIABLE HELIX that includes an aggressive 35° Helix Angle which ends at 15°. The 135° split point tip delivers a precision start and prevents walking for fast, accurate holes in Hard Metal, PVC and wood.The tapered drill bits feature a new ENHANCED TAPERED WEB that strengthens the bit’s core to increase flute durability. The cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. Black Oxide Drill Bits.
- Cobalt alloy for up to 15x life vs. black oxide drill bits
- ENHANCED TAPERED WEB strengthens the bits core
- VARIABLE HELIX Design for rapid material extraction
- 3-Flat Secure-Grip helps keep the bit fixed within the the chuck
- Designed for Hard Metals, PVC and Wood
Sidney Donnelly (verified owner) –
Throw this in a drill press and it cuts through steel like it’s aluminium. Does well with a cordless drill as well. Doesn’t wander much. So far has lasted way longer than a normal junk carbide or titanium coated bit. For metal drilling I’m going cobalt from now on, the price is worth it.
Retta Denesik (verified owner) –
this drill bit did exactly what I needed it for. I especially liked the guiding nipple at the tip. I have had it for a month now and needed it to drill a large hole into a barbecue in order to insert a thermometer.
Norene Lebsack (verified owner) –
Used to drill hole in planter.worked great
Dessie Borer (verified owner) –
Best drill bit I have ever bought!
Antonina Stokes (verified owner) –
Drills are good quality and get the job done.
Alessia Dooley (verified owner) –
It served its purpose.
Magdalen Murray (verified owner) –
HD really wanted this review done; sent two requests. So, ok. I’ll write a review on a tiny, 1/16” drill bit. Here goes. I secured the drill bit in my drill, put the tip on the mark I’d made on my steel bathroom door, pulled on the power trigger and….drilled a hole. The tiny drill bit met my expectations. Well, there you go. Review done.
Julius Goldner (verified owner) –
Quickly and repeatedly went through the 1/8″ angle iron
Kristofer Hilpert (verified owner) –
This cuts through stainless steel
Katlyn Kulas (verified owner) –
This drill bit stayed sharp to drill all the holes for the bolts that would attach new slats to my lawn furniture .Yea!
Melyna Fadel (verified owner) –
Very good quality drill bit. I was able to drill through a quarter inch thick metal plate with relative ease.
Torrance Cole (verified owner) –
I tried several bits to drill through hard steel. This one was, by far, the best and most durable bit that I used.
Meta Bruen (verified owner) –
I bought this to drill through a metal plate that I could not see inside a brick wall. It did not go through. I tried it on some scrape metal and it went through clean and fast so not sure why. The other issue was I bought a Milwaukee bit extender to reach through the wall and this bit would not in fit the 1/4 inch holder.
Madelyn Robel (verified owner) –
Good drill bit. Exactly as expected.
Sandra Pfeffer (verified owner) –
I break bits pretty often when hand drilling and these bits are cheap enough that I am not upset when I do and sharp enough that I break them less often. Great for mild steel.
Tabitha Quigley (verified owner) –
Working on a deck project that requires me to drill into aluminum posts. This drill bit appeared to be the best that Home Depot had to offer for a metal project.
Bailee Rohan (verified owner) –
Great price and good bit!
Emiliano Parker (verified owner) –
Performed as specified by manufacturer.
Norene Huels (verified owner) –
Worked well drilling on cast iron and metal.
Lafayette Dickens (verified owner) –
excelent and powerfull bit for use on steel