Milwaukee 3/8 in. Thunderbolt Cobalt Twist Drill Bit
$15.40
Perform nailing and drilling works effortlessly with the help of this excellent Milwaukee Thunderbolt Cobalt Drill Bit. Ideal for any modern home.
In stock
Description
The MILWAUKEE RED HELIX Cobalt 3/8 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 | 0.1 lbs |
|---|---|
| Dimensions | 6.75 × 0.38 × 1.88 in |
| Assembled Depth (in.) | 3/8 in |
| Assembled Height (in.) | 3/8 in |
| Assembled Width (in.) | 5.12 in |
| Bit Diameter | 3/8 in |
| Bit Length (in.) | 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 | 48-89-2321 |
| Self-Feeding | No |
| Shank Diameter | 3/8 in |
| Shank Style | 3-Flat |
| Tools Product Type | Power Tool |
Reviews (60)
60 reviews for Milwaukee 3/8 in. Thunderbolt Cobalt Twist Drill Bit
Only logged in customers who have purchased this product may leave a review.
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Rusty Reinger (verified owner) –
Drills are good quality and get the job done.
Westley Okuneva (verified owner) –
These cobalt drill bits last longer than standard black oxide or those gimmicky titanium coated ones do.
Giovanna Pagac (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
Santos Feil (verified owner) –
Great bit. Very sharp. Went thru the wood like butter. Had some issues with the metal plate behind it, but it eventually penetrated it also.
Yvonne Hegmann (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.
Nash Fritsch (verified owner) –
Great price and good bit!
Jennie Hills (verified owner) –
Best drill bit I have ever bought!
Moises Dooley (verified owner) –
Worked well drilling on cast iron and metal.
Estella Brekke (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.
Ryann Welch (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.
Hanna Kilback (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!
Omari Welch (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.
Adrien Zulauf (verified owner) –
This cuts through stainless steel
Hipolito Thiel (verified owner) –
is the most powerfull bit, for use on steel
Lottie Kassulke (verified owner) –
Rugged, sharp, excellent quality
Tevin Kohler (verified owner) –
Quickly and repeatedly went through the 1/8″ angle iron
Eva Hegmann (verified owner) –
It served its purpose.
Godfrey Christiansen (verified owner) –
Bought this to drill through a car frame rail and worked flawless. Drilled through the metal with little effort.
Muriel Adams (verified owner) –
Used it to drill holes through 4 corners of metal rail section. Worked well. No problems.
Mollie Sawayn (verified owner) –
This drill bit worked great in my Hitachi drill.