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Description
Technical data for the Ø20 cobalt drill bit
| Technical data | |
|---|---|
| Working diameter of drill d | Ø20 mm |
| Overall length l1 | 205 mm |
| Reduced shank d1 | 13 mm |
| Flute length l2 | 140 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 Ø20 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 | 0.2 | 318 | 64 |
| MStainless steel | 10 | 0.2 | 159 | 32 |
| KCast iron | 15 | 0.2 | 239 | 48 |
| NAluminum and nonferrous materials | 34 | 0.25 | 541 | 135 |
May be useful
Cutting parameters calculator
Ø20 Inox cobalt drill bit for metal
20 mm cobalt drill bit for metal HSSE Inox. A twist drill with a smooth straight shank for drilling holes with a diameter of 20 mm. Manufactured in accordance with the NWKa, DIN 338 standard. It delivers high cutting performance as a direct result of its modern HSSE high-speed steel construction, further enriched with 5% cobalt. This element increases drill hardness and durability. It enables highly efficient drilling, reducing machining time and allowing more efficient use of available workstations. In addition, our straight-shank drills offer high resistance to demanding operating conditions and a lower risk of cutting edge damage. They are suitable for machining hard materials such as alloy steels, acid-resistant steel, heat-resistant steel, stainless steel, cast steel, cast iron, and nonferrous metals. 20 mm cobalt drill bits for metal are recommended for conventional machine tools (drilling machines, lathes, milling machines) and CNC machine tools.
Product accessories
Metal drill bit 20 long 254/166 HSS DIN 340
Reference: 0277 In stock > 10 items
€15.79
€19.42 brutto
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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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