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Description
Technical data of fi 7.9 cobalt drill bit
| Technical data | |
|---|---|
| Working diameter of drill d | fi 7,9 mm |
| Total length l1 | 117 mm |
| Overall length L | 75 mm |
Cutting parameters of drill bit fi 7.9 mm HSSE NWKa
| ISO Symbol | Material | Cutting speed Vc [m/min] | Feed per revolution f [mm] | Revolutions n [obr/min] | Total feed rate [mm/min] |
|---|---|---|---|---|---|
| P | Steel | 20 | 0,08 | 806 | 64 |
| M | Stainless steel | 10 | 0,08 | 403 | 32 |
| K | Cast iron | 15 | 0,08 | 605 | 48 |
| N | Aluminum and non-ferrous materials | 34 | 0,1 | 1371 | 137 |
May be useful
Cutting parameters calculator
Drill cobalt fi 7,9 Inox
Drill 7,9 mm cobalt HSSE Inox. Modern 7,9 mm cylindrical twist drill bit designed for professional processing of extremely durable and hard-to-machine materials. The drills have 2 central blades, a tip angle of 118 degrees, spiral grooves for chip evacuation up the drilled hole, and strong ground cutting edges resistant to impact and lateral forces.
An unquestionable advantage of the drill bits is that they are manufactured from special cobalt HSSE high-speed steel. This is a steel with 5% cobalt, which greatly enhances the ability to drill in harsh conditions. The drills can withstand high-speed drilling, during which high temperatures (up to 670 degrees) are generated. Even under such extreme conditions, the drill blades are not subject to fractures, cracks, chipping and other damage. The drills are suitable for machining alloy steels, stainless steel, heat-resistant steel, acid-resistant steel, cast iron and cast steel. Drill the 7.9mm cobalt is designed for drilling machines, milling machines and lathes as well as CNC numerical control machine tools.
Product accessories
Self-clamping drill chuck 1-13 B16 PTRu
Reference: 0000004205 In stock > 10 items
€16.05
€19.74 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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