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Description
Technical data of metal drill fi 0.49
| Technical data | |
|---|---|
| Working diameter of drill d | fi 0,49 mm |
| Overall length l1 | 20 mm |
| Length of working part l2 | 5 mm |
- Drill bit made according to DIN-338
- Possible drilling to a hardness of 35 HRC
- Blade angle of 118 degrees suitable for drilling in steel, cast steel
- Made of the best grade of high speed steel HSS ( High speed steel )
- Makes a hole in h8 tolerance
- Low roughness of the hole
Cutting parameters of drill fi 0,49 mm HSS 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 | 14-25 | 0,05 | 9099 | 455 |
| K | Cast iron | 10-18 | 0,05 | 6499 | 325 |
May be useful
Cutting parameters calculator
Drill fi 0.49 with cylindrical shank
The 0.49 mm HSS DIN 338metal drill bit is designed for making micro holes in structural steels, cast iron and non-ferrous alloys; in workshop work, with rigid layout and parameter control, it also works well as a 0.49 mm metal drill bit, maintaining stable trajectory and accuracy in IT12 grade.
The nominal diameter is 0.49 mm. The 118-degree apex angle facilitates centering and uniform cutting, and the helical, precision-ground grooves ensure continuous chip evacuation in the right cutting direction. The high-purity high-speed steel core features wear resistance and cutting edge durability. Length design in accordance with DIN 338 (normal length) promotes rigidity; the fi 0.49 mm steel drill bit is also used in steel applications, making it easier to maintain workshop diameter tolerance with high RPM, micrometer feed and emulsion or oil mist cooling.
- Reliable axis engagement - 118-degree geometry reduces entry drift and stabilizes the drilling path.
- Even wall surface - polished channels reduce friction; under these conditions, the fi 0.49 mm metal drill bit works effectively, promoting low roughness and a clean exit edge.
- Durable edge - homogeneous high-speed steel extends service life in unit and short-run work.
- Repeatable IT12 grade - dimensional stability is maintained with properly selected speeds and feeds and rigid clamping.
Compliance with DIN 338 facilitates installation in standard chucks, and the holes produced qualify for IT12 class fits according to EN ISO 286. In practice, predictable diameter, alignment and stable micro-hole geometry are maintained even at full-through on thin-walled workpieces.
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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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