Data sheet

Counterbore DIN 373 for M 5-Thread core holes
Item number:
BOHR FSK M5 HSS
Example illustration
Item description
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
Properties
Ver­sion sin­gle coun­ter­sink
Usage Thread core holes
for screws M 5
Coun­ter­sink di­am­e­ter [mm] 10
Jour­nal di­am­e­ter [mm] 4,2
Total length [mm] 80
Shaft di­am­e­ter [mm] 8,0
Further information:
Weight 34 g / pcs
GTIN 4050571165017
Customs duty number 82079091
Manufacturer RUKO
More information on this item and the process for ordering it can be found in our online shop https://www.landefeld.com under item number BOHR FSK M5 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.
As of: 22.07.2025