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Description
Technical data of metal drill fi 0,9
| Technical data | |
|---|---|
| Working diameter of drill bit d | fi 0,9 mm |
| Overall length l1 | 32 mm |
| Length of working part l2 | 11 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 0,9 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 | 4954 | 248 |
| K | Cast iron | 10-18 | 0,05 | 3539 | 177 |
May be useful
Cutting parameters calculator
Drill fi 0.9 with cylindrical shank
The 0.9 mm HSS DIN 338metal drill bit is designed for micro-drilling in structural steels, cast iron and non-ferrous alloys; in practice, it maintains a stable run and allows you to maintain the IT12 accuracy class.
The length design according to DIN 338 (normal length) and cylindrical shank are conducive to working in standard chucks; when machining, with the fi 0.9 mm steel drill, high RPM, micrometer feed, emulsion or oil mist cooling and rigid clamping are recommended. The drills are designed for conventional lathes, milling and drilling machines, as well as specialized computer-controlled numerical control machine tools. The nominal diameter is 0.9 mm. The 118-degree apex angle balances cutting forces and facilitates smooth entry into the material, while helical ground grooves ensure continuous chip evacuation with the right cutting direction. A core made of high-purity homogeneous high-speed steel increases wear resistance and edge stability.
- Stable centerline start - 118-degree geometry reduces drift at the entry point and organizes the drilling path.
- Even wall surface - polished channels reduce friction, promoting low roughness and a clean exit edge.
- Repeatability of IT12 - dimension maintenance is possible with proper parameters and rigid clamping.
- Blade life - homogeneous high-speed steel extends service life between sharpening in unit and short-run cycles.
Compliance with DIN 338 and reference to PN-EN ISO 286 enable the qualification of holes for workshop fits; as a result, the fi 0.9 mm metal drill provides predictable diameter and alignment in typical micromachining tasks.
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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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