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HSSE 7.2 cobalt metal drill bit DIN 338
13288
Diameter (mm): 7,2115 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
€3.24 tax inc.
Net price: €2.63
Description
Technical data for the Ø7.2 cobalt drill bit
| Technical data | |
|---|---|
| Working diameter of drill d | Ø7.2 mm |
| Overall length l1 | 109 mm |
| Flute length l2 | 69 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 Ø7.2 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 | 0.08 | 910 | 73 |
| MStainless steel | 10 | 0.08 | 455 | 36 |
| KCast iron | 15 | 0.08 | 682 | 55 |
| NAluminum and nonferrous materials | 34 | 0.1 | 1547 | 155 |
May be useful
Cutting parameters calculator
Ø7.2 Inox cobalt drill bit for metal
7.2 mm cobalt drill bit for metal HSSE Inox. Professional straight-shank twist drill bit intended for professional drilling in large workshops and metalworking shops. This drill bit has a diameter of 7.2 mm and features 2 central cutting edges, a 118° point angle, helical flutes for chip evacuation, and ground cutting edges that withstand impacts and lateral forces. These specific geometric features are combined with the superior cutting properties of the high-speed steel from which the drill bits are made. HSS-E steel contains 5% cobalt, which significantly enhances the drill bits' capabilities. Above all, they withstand demanding operating conditions, particularly the high temperatures generated at high cutting speeds. Our NWKa DIN 338 straight-shank drill bits are suitable for machining hard alloy steels, stainless steels, heat-resistant steels, acid-resistant steels, and even gray and ductile cast iron. 7.2 mm cobalt drill bits for metal can be used on conventional and CNC machine tools.
Product accessories
Metal drill bit 7.2 long 156/102 HSS DIN 340
Reference: 0205 In stock > 10 items
€1.84
€2.27 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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