Milwaukee 7/16 in. Thunderbolt Cobalt Twist Drill Bit
$19.98
This affordable Milwaukee Thunderbolt Cobalt Drill Bit is perfect for drilling on curved surfaces. Convenient to handle, maintain and offers durability.
In stock
Description
The MILWAUKEE RED HELIX Cobalt 7/16 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 drill bits have QUADEDGE TIP to decrease heat buildup and drill faster. 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
- QUADEDGE TIP designed to decrease heat build up and drill faster
- ENHANCED TAPERED WEB strengthens the bits core
- VARIABLE HELIX Design for rapid material extraction
- 135° split point for precision start no walking
- 3-Flat Secure-Grip helps keep the bit fixed within the the chuck
- Designed for hard metals, PVC and wood
Additional information
| Weight | 0.16 lbs |
|---|---|
| Dimensions | 6.75 × 0.50 × 1.88 in |
| Assembled Depth (in.) | 7/16 in |
| Assembled Height (in.) | 7/16 in |
| Assembled Width (in.) | 5.12 in |
| Bit Diameter | 7/16 in |
| Bit Length (in.) | 5.5 |
| Bit Material | Cobalt |
| Drill Bit Type | Twist |
| Drill Bit Type(s) Included | Twist |
| Individual/Set | Individual |
| Material Application | Aluminum, Cast Iron, Duct/Sheet Metal, Stainless Steel, Steel |
| Model | 48-89-2325 |
| Self-Feeding | No |
| Shank Diameter | 3/8 in |
| Shank Style | 3-Flat |
| Tools Product Type | Power Tool |
Reviews (60)
60 reviews for Milwaukee 7/16 in. Thunderbolt Cobalt Twist Drill Bit
Only logged in customers who have purchased this product may leave a review.
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Aubree Casper (verified owner) –
This is what millwaukie is made of true precision and durability that outlasts the competitor’s while saving money is always good spending a little more will save you time and the worry free name like Milwaukee you won’t be let down
Yadira Torp (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.
Hermann Rolfson (verified owner) –
is the most powerfull bit, for use on steel
Alaina O’Connell (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.
Gaston Padberg (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.
Bethany Stroman (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
Filiberto Walsh (verified owner) –
It worked exactly the way I wanted
Dejah Beahan (verified owner) –
I was trying to drill through metal none of the bits I had could drill through the harden steel a trip to home Depot and I bought this bit and it drilled through the metal like butter definitely recommend it
Lorine Bechtelar (verified owner) –
These cobalt drill bits last longer than standard black oxide or those gimmicky titanium coated ones do.
Yesenia Lesch (verified owner) –
This cuts through stainless steel
Sarina Denesik (verified owner) –
Rugged, sharp, excellent quality
Marielle Dickens (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.
Marquise Gleason (verified owner) –
Item in great shape out of the container. Very sharp, definitely straight, and superb craftsmanship. Cut right through steel, wood and almost anything else you might desire. Excellent drill bit.
Hilton Denesik (verified owner) –
Performed as specified by manufacturer.
Ivah Yundt (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!
Elenora Bosco (verified owner) –
It drilled perftly through the bolts I was trying to get off of my lawnmower. I would recommend trying it for yourself.
Laurine Greenholt (verified owner) –
Used this to drill through a locked door in my home that didn’t have a key. I used a normal drill bit for 30 minutes to no avail on the anti-drill insert. This drill bit got through in less than a minute.
Lavern Balistreri (verified owner) –
Used to drill hole in planter.worked great
Davon Weber (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.
Cortez Skiles (verified owner) –
Really? You want me to review a drill bit? Umm, it put a hole in the material I wanted so I guess it was at least good.