Data sheet
Counterbore DIN 373 for M 3-Thread core holes
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BOHR FSK M3 HSS
Example illustration
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Description:
Counterbore for manufacture of countersinking according to DIN 74, Page 2, Form H, J and K for socket head cap screws, hexagonal screw heads and nuts. Ideal for burr-free and zero chatter countersinking. Best results at low cutting speed.
Quality:
HSS-G:
Use for steel, cast steel alloys and non-alloys, grey, malleable, ductile and cast iron, sintered iron, nickel silver, graphite, short cutting aluminium alloys, brass, bronze and plastics
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| Version | single countersink |
| Usage | Thread core holes |
| for screws | M 3 |
| Countersink diameter [mm] | 6 |
| Journal diameter [mm] | 2,5 |
| Total length [mm] | 71 |
| Shaft diameter [mm] | 5,0 |
Further information:
| {{ $t('shop.all.gewicht') }} | 20 g / pcs |
| {{ $t('shop.all.gtin') }} | 4050571164997 |
| {{ $t('shop.display.artikel.zollwarennummer') }} | 82079091 |
| {{ $t('shop.display.artikel.rohskonform') }} | {{ $t('shop.all.ja') }} |
| {{ $t('shop.all.hersteller') }} | RUKO |
Figure
More information on this item and the process for ordering it can be found in our online shop https://www.landefeld.de under item number BOHR FSK M3 HSS.
Landefeld Druckluft und Hydraulik GmbH · Konrad-Zuse-Straße 1 · 34123 Kassel · Germany
All data are to be understood as non-binding reference values! We do not assume liability for any data selection not confirmed in writing. Unless otherwise specified, pressure values refer to liquids from Group II at +20°C.
Our products arid goods are generally only intended for industrial and commercial uses.
Our products arid goods are generally only intended for industrial and commercial uses.
As of: 13.12.2025