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🔧 Drill Smarter, Not Harder — Own the Toughest Metals with Ease!
The STROTON 4-32mm Metric 5% Cobalt Step Drill Bit features 15 precise step sizes, crafted from premium M35 cobalt steel with a Rockwell hardness of 66-69 HRC. Designed for superior heat and wear resistance, it effortlessly cuts through stainless steel, iron, aluminum, and various other materials. Its optimized geometry enables drilling speeds 2-3 times faster than conventional bits, making it a cost-effective, durable choice for professionals demanding precision and longevity.
| ASIN | B0886JKJMD |
| Best Sellers Rank | #16,064 in Automotive ( See Top 100 in Automotive ) #2 in Step Drill Bits #20 in Metalworking & Multi-purpose Drill Bits |
| Brand | STROTON |
| Brand Name | STROTON |
| Customer Reviews | 4.5 out of 5 stars 1,159 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 32 Millimeters |
| Cutting angle string | 135 Degrees |
| Cutting diameter | 32 Millimeters |
| Finish Types | Brass |
| Finish type | Brass |
| Item Dimensions | 14.8 x 7.2 x 4.1 centimeters |
| Manufacturer | STROTON |
| Material | Cobalt |
| Material Type | Cobalt |
| Minimum Bore Diameter | 4 Millimeters |
| Model | Cobalt-15s-(4-32mm) |
| Number of Flutes | 1 |
| Number of Pieces | 15 |
| Part Number | Cobalt-15s-(4-32mm) |
| Point Style | Taper Point |
| Set Name | 4-32mm Metric Drill Bit 15 Steps |
| Shank Type | Straight |
| Shank type | Straight |
| Surface Recommendation | Iron, Stainless Steel, Iron Plate, Aluminium, Wood, PVC, Plastic |
| Tool Flute Type | Spiral |
| UPC | 630808641435 |
| Unit Count | 1.0 Count |
A**A
Stepped drill bit
excellent for stainless plate. good drill bit. would buy again if needed.
L**G
Great drill bit!
Wow, this step bit cuts through stainless steel sheet with barely any effort. I drilled 2 holed in my SS BBQ lid, which is heavy guage SS, and this baby cut through with no problems. I did start with a tiny pilot hole.
P**M
Sehr gute Qualität
Gute Verpackung, Schnelle Lieferung, Sehr gute Qualität, Kaufen gerne wieder,
T**C
Cuts through steel like butter
How often do you spend £30 on a drill bit? If it cuts like this one does then I'd ensure a quality spend any day as it's value for money. Used to cut through 6mm steel bulkhead on a narrow boat for an isolator switch install in a difficult position. Absolutely brilliant bit of kit, large pilot hole first then cutting oil and a steady drill speed made a 26mm hole with ease. Apart from a few scratch marks the cutter still looks brand new, I hope to use it for many more hole drillings in the future. I've used the cheaper version with their goldish coating before and can honestly say they are rubbish compared to this.
A**O
👍👍
Just used it once and it seems fine
Trustpilot
1 day ago
3 weeks ago