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Description
Technical data Ø17.5 mm metal drill bits
| Technical data | |
|---|---|
| Working diameter of drill d | Ø17.5 mm |
| Overall length l1 | 191 mm |
| Flute length l2 | 130 mm |
| Shank diameter d1 | 13 mm |
- Drill bit manufactured according to DIN-338
- Suitable for drilling materials up to 35 HRC
- 118° point angle suited to drilling steel and cast steel
- Made from the finest grade of high-speed steel (HSS)
- Produces a hole with an h8 tolerance
- Low hole surface roughness
Cutting data for the Ø17.5 mm HSS NWKa drill bit
| Material | Cutting speed Vc [m/min] | Feed per revolution f [mm] | Spindle speed n [rpm] | Total feed rate [mm/min] |
|---|---|---|---|---|
| PSteel | 14-25 | 0.2 | 255 | 51 |
| KCast iron | 10-18 | 0.2 | 182 | 36 |
May be useful
Cutting parameters calculator
17.5 mm reduced-shank HSS DIN 338 metal drill bit – precision standardized tool
Specialized HSS drill with a diameter of 17.5 mm, compliant with DIN 338 with a reduced shank is a tool designed to strict European standards. The shank diameter of 13 mm enables quick mounting in standard drill chucks. DIN 338 defines clear requirements for tool geometry and material properties.
Design parameters of the 17.5 mm Varel drill conforming to DIN 338
- DIN 338 standard – precisely specified 118° point angle and helix geometry conforming to the industrial standard
- Shank reduced to a diameter of 13 mm – trouble-free mounting in drill presses and magnetic drilling machines without sleeves
- Universal 118° geometry – point angle conforming to DIN 338, proven in a variety of machining applications
- Precision grinding – guarantees high-quality cutting edges and tool durability
- High-speed steel (HSS) according to DIN 338 – material meeting the standard's requirements for long service life
DIN 338 provides the basis for predictable tool performance and interchangeability across different suppliers. The design with a shank reduced to 13 mm increases versatility across different machines without additional investment in adapters.
Frequently asked questions
DIN 338 standardizes key parameters: point angle, dimensions and material properties. This guarantees compatibility and predictable quality for the user, regardless of which manufacturer meets the standard.
We recommend water-based coolant emulsions or metalworking oils, depending on the workpiece material. Proper cooling is essential to maintaining drill sharpness and the quality of the drilled holes.
For lower-strength structural steels, the optimal range is 250-340 rpm, and for harder grades, 210-280 rpm. These parameters are based on machining principles for HSS tools and the given tool diameter.
Product accessories
15.5 mm HSS DIN 338 fluted metal drill bit
Reference: 0000004464 In stock > 10 items
€4.74
€5.83 brutto
Metal drill bit 17.5 long 241/158 HSS DIN 340
Reference: 0269 In stock < 10 items
€11.32
€13.92 brutto
Tapered countersink 20.5/90 DIN 335 C HSS
Reference: 11248 In stock > 10 items
€14.47
€17.80 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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