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HSSE 11.3 cobalt metal drill bit DIN 338
15086
Diameter (mm): 11,3115 sizes of this drill
0,30,40,50,60,70,80,911,11,21,31,41,51,61,71,81,922,12,22,32,42,52,62,72,82,933,13,23,33,43,53,63,73,83,944,14,24,34,44,54,64,74,84,955,15,25,35,45,55,65,75,85,966,16,26,36,46,56,66,76,86,977,17,27,37,47,57,67,77,87,988,18,28,38,48,58,68,78,999,19,29,39,49,59,69,79,89,91010,110,210,310,410,510,610,81111,211,311,511,81212,112,212,512,813
€8.58 tax inc.
Net price: €6.97
Description
Technical data for the Ø11.3 cobalt drill bit
| Technical data | |
|---|---|
| Working diameter of drill d | Ø11.3 mm |
| Overall length l1 | 142 mm |
| Flute length l2 | 94 mm |
- Drill bit manufactured according to DIN-338
- Suitable for drilling materials up to 37 HRC
- 130° point angle adapted for drilling INOX
- Made from the finest grade of HSS-E high-speed steel with 5% added cobalt
- Produces a hole with an h8 tolerance
- Low hole surface roughness
Cutting data for the Ø11.3 mm HSSE NWKa drill bit
| Material | Cutting speed Vc [m/min] | Feed per revolution f [mm] | Spindle speed n [rpm] | Total feed rate [mm/min] |
|---|---|---|---|---|
| PSteel | 20 | 0.1 | 579 | 58 |
| MStainless steel | 10 | 0.1 | 290 | 29 |
| KCast iron | 15 | 0.1 | 434 | 43 |
| NAluminum and nonferrous materials | 34 | 0.12 | 984 | 118 |
May be useful
Cutting parameters calculator
11.3 mm HSSE INOX cobalt drill bit for metal
11.3 mm cobalt drill bit for metal made of HSS-E high-speed steel alloyed with 5% cobalt is designed for precision drilling in stainless steels, structural steels, and difficult-to-machine materials. A professional solution for machine shops, manufacturing plants, and toolrooms requiring reliability in daily operations.
Why choose the 11.3 mm HSS-Co drill bit
- Heat resistance up to 600°C — the cobalt addition ensures stable performance even during intensive drilling
- Special 130° point angle — optimizes cutting force in INOX and acid-resistant steels
- A hardness of 62-64 HRC guarantees up to three times the service life of standard HSS drill bits
- DIN 338 standard with h8 tolerance — dimensional reliability and compatibility with 3-jaw chucks
- Proven in the automotive industry and steel fabrication — the professionals' choice
This Ø11.3 INOX cobalt drill bit for metal is valued by mechanics and metalworkers for reliable performance under demanding machining conditions. Ideal for drilling holes in stainless steel, high-strength alloy, and cast iron components in workshops, production facilities, and service centers. Invest in quality that pays off through reduced downtime and precise results.
Frequently asked questions
The drill bit has a 130° point angle, which optimizes the distribution of cutting forces when drilling INOX stainless steel and difficult-to-machine materials. This angle improves chip evacuation and reduces the load on the cutting edge, resulting in longer tool life.
Yes, cobalt drill bits can be resharpened repeatedly using CBN grinding wheels. When sharpening, maintain the original 130° angle and the tip geometry specified by DIN 338. Proper sharpening fully restores the tool's cutting performance.
For stainless steel, the recommended setting is a cutting speed of 10-15 meters per minute, which corresponds to approximately 280-420 rpm for a 11.3 mm diameter. Maintaining a steady feed and using coolant are essential to prevent overheating and work hardening of the workpiece material.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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