The MILWAUKEE RED HELIX Cobalt 11/64 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
Aiyana Predovic (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.
Claudie Gutmann (verified owner) –
I would like to take back my negative review for 7/64 Milwaukee Cobalt bit . The hole I was trying to drill was at the angle and at a difficult location. The drill bit is excellent. I never seen a bit flex so much and not break.P.S. HD, fix the picture and a title for the review pop up. It does not match the link!
Katelynn Nienow (verified owner) –
Broke off an exhaust bolt and had to drill it out. (in place) Bought the 3/16 Cobalt as my starter size and also the appropriate size called for, to tap out the threads. I was surprised how easily these bits drilled through the old steal bolt.
Destiny Okuneva (verified owner) –
Its an odd size but needed it for my application. Cobalt bit should last for a long time
Trycia Gulgowski (verified owner) –
Bought it to drill stainless steel shelves. Used the lower speed on my Ryobi battery drill as recommended on the drill package and was amazed at how well it worked.
Elmer Becker (verified owner) –
Wow. Powered through the steel like wood. Great addition into my toolbox.
Jeromy Botsford (verified owner) –
I am new to knife making. I have tried several different drills and this was the best of the lot for drilling hard metal. Drill speed is vital to successTool speed charts are available onlineI use 600 rpm on my drill press with a little motor oil
Alfonso Prohaska (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!
Janessa Prosacco (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.
Lonny Mueller (verified owner) –
Performed as specified by manufacturer.
Meggie Durgan (verified owner) –
Drills are good quality and get the job done.
Emmet Kuphal (verified owner) –
These cobalt drill bits last longer than standard black oxide or those gimmicky titanium coated ones do.
Elvis Reichert (verified owner) –
This drill bit worked great in my Hitachi drill.
Hillary Bauch (verified owner) –
Have multiple cobalt bits for drilling stainless on boats, work great last until I break them.
Davin Hoeger (verified owner) –
Used it to drill holes through 4 corners of metal rail section. Worked well. No problems.
Warren Lind (verified owner) –
Used to drill hole in planter.worked great
Madonna Weissnat (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.
Zachery Kovacek (verified owner) –
Rugged, sharp, excellent quality
Mac Wunsch (verified owner) –
Its an odd size but needed it for my application. Cobalt bit should last for a long time
Mittie Reinger (verified owner) –
I have been drain drilling holes into galvanized steel planters and it has been doing fine. Very pleased. I bought two just in case but now I know I won’t need the other one.