⚡ Drill smarter, faster, and tougher — own the job site with STROTON!
The STROTON Metric M42 8% Cobalt Drill Bits set (4.5mm, 5pcs) features premium cobalt steel with a 68-70 HRC rating, delivering exceptional heat and wear resistance. Designed with a 135° split point for precise starts, these bits cut through stainless steel, hard metals, and more at speeds 3-5 times faster than standard bits, reducing overall drilling costs and downtime. Ideal for professionals demanding durability, speed, and versatility in one high-performance tool.
| ASIN | B08H1K1J29 |
| Best Sellers Rank | #68,263 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #292 in Power Drill Bit Sets |
| Brand | STROTON |
| Brand Name | STROTON |
| Customer Reviews | 4.4 out of 5 stars 587 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 4.5 Millimeters |
| Cutting angle string | 135 Degrees |
| Cutting diameter | 4.5 Millimeters |
| Finish Types | Uncoated |
| Finish type | Uncoated |
| Included Components | drill bits |
| Item Weight | 1 Pounds |
| Manufacturer | STROTON |
| Material | Cobalt |
| Material Type | Cobalt |
| Minimum Bore Diameter | 4.5 Millimeters |
| Model | M42 Cobalt-8( Independent Packaging) |
| Number of Flutes | 2 |
| Point Style | Split Point |
| Shank Type | Straight |
| Shank type | Straight |
| Surface Recommendation | Stainless Steel, Hard Metals, Aluminum, Plastic, Hardwood |
| Tool Flute Type | Spiral |
| Unit Count | 5 Count |
N**O
Muito bom!!
Muito bom! Pensei que por ser uma marca desconhecida e um formato fora do comum que nao iam ser boas, pelo contrario, estao equiparadas ás bosch PRO, se nao ate melhores! Comprei para furar inox de 3mm, cerca de 40 furos, a da bosch fez uns 10/15, por norma com pre furo de 2 ou 3mm, estas usei UMA para fazer os restantes furos tambem com pre furo de 2 ou 3mm da bosch, muito satisfeito!
J**N
Works on UHSS
So far this has been the best drill bit that Ive used so far to drill through automotive UHSS. Tesla to be precise. I was able to do make at least 5 holes with cutting oil, compared to 1 hole from other brands. Which were triple and more the cost. Definitely worth buying for these operations.
M**6
Good quality bits
These things cut through the steel, pretty easy I couldn’t be happier with these.
N**.
Bon produit
A permis de faire un trentaine de trous dans de l'acier doux de 4mm d'épaisseur et coupe encore parfaitement. Attention à utiliser une vitesse de rotation adéquate, pas trop rapide.
B**N
Great quality. sharp and fast
Sharp good quality, and i did 18 holes in 316 stainless with no issues, ware was minimal and it can easily do way more holes. don't know if it can take a normal sharpening.
Trustpilot
1 month ago
1 day ago
