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⚡ Drill Smarter, Not Harder — Own the Toughest Jobs with Ease!
The M42 8% Cobalt Twist Drill Bits (12mm, 2-pack) deliver professional-grade performance with premium cobalt steel hardened to 68-70 HRC. Featuring a 3-step split point tip, these bits start drilling immediately with less force and run 3-5 times faster through stainless steel, hard metals, and more. Designed for longevity and precision, they offer the lowest cost per hole by maximizing tool life and minimizing wear, making them the go-to choice for demanding projects.
| ASIN | B081Z8GW47 |
| ASIN | B081Z8GW47 |
| Best Sellers Rank | #3,000 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Jobber Drill Bits |
| Brand Name | STROTON |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,457) |
| Customer reviews | 4.4 4.4 out of 5 stars (4,457) |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 12 Millimeters |
| Date First Available | 13 January 2021 |
| Finish Types | Hardened |
| Is Discontinued By Manufacturer | No |
| Item Weight | 454 g |
| Item model number | M42 Cobalt-8 |
| Manufacturer | WnewTools Ltd |
| Manufacturer | WnewTools Ltd |
| Material Type | Cobalt |
| Model | M42 Cobalt-8 |
| Number of Flutes | 2 |
| Package Dimensions | 18.29 x 10.16 x 2.03 cm; 453.59 g |
| Shank Type | Straight |
| Surface Recommendation | Wood |
| Tool Flute Type | Spiral |
| UPC | 630808641305 |
| Unit Count | 2 Count |
J**I
Good quality
Very good quality
B**E
Very good drill bits
Great drill bits. They cut through stainless steel very nicely if you take your time and use a cutting fluid to keep them cool. Had a minor issue with one of the bits snapping (my fault) but the seller took care of the issue immediately and was very responsive.
C**S
Very high quality drills
I am a metal worker for 23 years, hard to find any better cobalt drills. Highly recommended.
M**N
Didn't cut hardened steel quite as good as full cobalt bits, but way-way better than regular titanium coated bits. For the price and a full set, these performed very well as expected. The stepped cutting edge is a nice feature, and the cutting face was barely scratched going through a M10-30 oxide 10.9 bolt. Will be nice to have for future tough situations.
K**I
Las compré para inoxidables y se soporta las cargas como todo con el uso prolongado van perdiendo filo pero dura bastante para su precio
G**.
Punte di ottima qualità, solo una a distanza di tempo si è spezzata. Ho scritto al venditore, il quale ha provveduto tempestivamente a inviarmi il ricambio. Venditore serio e professionale.
J**A
Gostei As brocas são muito boas
B**K
Strong drill bits and last for a long time
Trustpilot
1 month ago
4 days ago