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⚡ Drill Smarter, Not Harder — Own the Toughest Jobs with Ease!
The STROTON 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 tip design and 135° split point, these bits excel at fast, precise drilling through stainless steel, hard metals, and more. Engineered for longevity and heat resistance, they run 3-5 times faster than standard bits, making them the go-to choice for managers and pros who demand efficiency and reliability on every project.
| ASIN | B081Z8GW47 |
| Best Sellers Rank | #2,645 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #8 in Jobber Drill Bits |
| Brand | STROTON |
| Brand Name | STROTON |
| Customer Reviews | 4.4 out of 5 stars 4,626 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 12 Millimeters |
| Cutting angle string | 135 Degrees |
| Cutting diameter | 12 Millimeters |
| Finish Types | Hardened |
| Finish type | Hardened |
| Item Weight | 454 g |
| Manufacturer | WnewTools Ltd |
| Material | Cobalt |
| Material Type | Cobalt |
| Model | M42 Cobalt-8 |
| Number of Flutes | 2 |
| Number of Pieces | 2 |
| Part Number | M42 Cobalt-8 |
| Set Name | 2-Piece Set |
| Shank Type | Straight |
| 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.
A**R
Punte quasi perfette
Testate su acciaio da 5mm forando con la n.4 come pilota e sembra indistruttibile, le altre più grandi le usate solo per allargare il foro. La 4,5 usata come pilota si è spaccata al solo contatto con il pezzo, alcune si sono scheggiate lateralmente, probabilmente difetti di fabbricazione. Ho contattato il fornitore che mi ha subito inviato le punte in sostituzione, solo per questo meriterebbe 10 stelle. Provate su barra in ferro da 5mm e forano come se fosse burro. Consiglio pienamente l'acquisto.
P**H
Excellent drill bits with an awesome warranty!!
I purchased these bits sometime ok...They are very sharp and cut into any material with ease and some cutting fluid of course!! However I did break a few on a project and dulled 4 bits...I contacted costumer service and within a few days they sent me a complete replacement with no questions asked.... Best companies costumer service I dealt with in forever!! Awesomeness!!
C**N
Excelente producto
Puedes hacer agujeros con facilidad en metales duros como inox 316
K**I
Si duran
Las compré para inoxidables y se soporta las cargas como todo con el uso prolongado van perdiendo filo pero dura bastante para su precio
J**A
Brocas metálica
Gostei As brocas são muito boas
Trustpilot
2 months ago
2 weeks ago