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Drill 7.9 long 156/109 HSS DIN 340
Artykuły Techniczne Artykuły Techniczne
0212
€2.14 tax inc.
Net price: €1.74
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In stock > 10 pcs.
Description
Technical data of long drill fi 7.9
| Technical data | |
|---|---|
| Working diameter of drill d | fi 7,9 mm |
| Total length l1 | 156 mm |
| Length of working part l2 | 109 mm |
Cutting parameters of long drill bit fi 7.9 mm HSS NWKb
| ISO symbol | Material | Cutting speed Vc [m/min] | Feed per revolution f [mm] | Revolutions n [obr/min] | Total feed rate [mm/min] |
|---|---|---|---|---|---|
| P | Steel | 12-21 | 0,06 | 546 | 33 |
| K | Cast iron | 10-15 | 0,06 | 455 | 27 |
| Copper and alloys | 12-25 | 0,08 | 546 | 44 |
May be useful
Cutting parameters calculator
Long drill bit for metal fi 7,9
High quality long drill bit for metal fi 7,9 used for drilling through-holes and blind holes in very hard and hard-to-machine materials of P1.2 - P1.3. class. These are metals, non-alloy steels, non-ferrous metals, plastics, as well as copper and aluminum alloys giving short chips. Offered by us long drills for metal fi 7,9 are made of modern high-speed steel HSS (High Speed Steel) according to the standard NWKb, DIN 340. The advantages of HSS affect the possibility of high-speed drilling at high speed, during which a high temperature is generated (up to 600 degrees C). In addition, an important advantage of the drill bits is also resistance to very harsh working conditions and increased resistance of the blades to possible damage (fractures, cracks). The service life of these drills is much longer than that of tools made of conventional tool steel.
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| 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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