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Description
Technical data for the Ø20.5 mm 90° countersink
| Technical data | |
|---|---|
| Cutting edge angle | 90 degrees |
| Maximum bore diameter D | fi 20.5 mm |
| Minimum bore diameter D1 | 3.5 mm |
| Diameter of the shank part d | 10 mm |
| total length L | 63 mm |
| Flute length l | 15 mm |
| Number of cutting edges Z | 3 |
| Tool material | HSS high-speed steel |
Cutting data for the Ø20.5 mm 90° countersink
| Material | Vc [m/min] | Feed per tooth fz [mm/tooth] | n [rpm] | Total feed rate f [mm/min] |
|---|---|---|---|---|
| PSteel | 18 | 0.06 | 280 | 50 |
| MStainless steel | 10 | 0.03 | 155 | 14 |
| KCast iron | 8 | 0.04 | 124 | 15 |
| NAluminum | 50 | 0.12 | 777 | 280 |
Countersink Ø20.5 mm 90° DIN 335 C HSS is a robust metalworking tool designed in accordance with DIN 335 C. Made of high-speed steel (HSS), it provides good durability and abrasion resistance at moderate cutting parameters. The tool is designed for countersinking holes for countersunk screw heads and for precise edge chamfering.
Thanks to its three cutting edges, countersink Ø20.5 mm 90° ensures stability during operation and uniform cutting, delivering a high-quality finish without vibration or tool runout. This makes the tool well suited to both manual and machine operations.
The product is designed for a wide range of materials, including structural steel and non-ferrous metals, and for use as a countersink Ø20.5 mm 90° for stainless steel, with appropriately selected cutting parameters. High-quality surface of the cutting edges ensures clean cutting and neat, burr-free countersinks.
- Three cutting edges – stabilize operation and ensure precise tool guidance.
- HSS steel – provides good strength and abrasion resistance under standard machining conditions.
- Smooth cutting surface – produces neatly finished countersinks without additional machining.
- Suitable for various metals – also works well as a countersink for metal and stainless steel.
- Versatility in use – suitable for workshops, one-off production, and series production.
Countersink Ø20.5 mm 90° is a practical tool that combines an attractive price with satisfactory performance, meeting the requirements of many workshop applications.
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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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