Polski 
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Description
Technical data of conical countersink fi 20.5 mm 90 degrees
| Technical data | |
|---|---|
| Blade angle | 90 degrees |
| Maximum bore diameter D | fi 20,5 mm |
| Minimum bore diameter D1 | 4,2 mm |
| Morse taper No | 2 |
| Total length L | 100 mm |
| Length of Working Part l | 13 mm |
| Number of blades Z | 3 |
| Material | HSS high-speed steel |
| Product | Polish |
Cutting parameters for countersink fi 20.5 mm 90 degrees
| ISO Symbol | Material | Vc [m/min] | Feed fz [mm/ostrze] | n [obr/min] | Total feed rate f [mm/min] |
|---|---|---|---|---|---|
| P | Steel | 18 | 0,06 | 280 | 50 |
| M | Stainless steel | 10 | 0,03 | 155 | 14 |
| K | Cast iron | 8 | 0,04 | 124 | 15 |
| N | Aluminum | 50 | 0,12 | 777 | 280 |
DIN 335 B HSS conical countersink fi 20.5 mm 90 degrees is an industrial-grade precision cutting tool for machining ninety-degree holes in metal parts. Made in accordance with DIN 335 B, it combines durability, strength and accuracy necessary for high-performance manufacturing processes.
The use of 3 blades ensures balanced operation, reduced vibration and even material removal, resulting in a high-quality machined surface without burrs or deformation. Thanks to its Morse taper shank, the tool guarantees a solid and secure clamping in machine tools, allowing the countersink to be guided securely even in difficult conditions.
This metal taper countersink is ideal for countersinking, chamfering and smoothing edges in materials such as carbon steel, copper, aluminum, brass or engineering plastics. As a fi 20.5 mm 90-degree conical countersink for stainless steel, it shows resistance to high temperatures and abrasion, making it ideal for machining difficult-to-machine materials.
- Three-edge geometry - ensures tool stability, quiet operation and a smooth hole surface.
- Morse shank - allows secure clamping in conventional and CNC machines.
- HSS high-speed steel - resistant to high temperatures, abrasion and intensive cutting conditions.
- Wide application - tool for metals, stainless steel and non-metallic materials, used in series and unit production.
Conical countersink fi 20,5 mm 90 degrees is a reliable solution for professionals who expect precision, durability and performance in metalworking.
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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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