Ruko Set of 6 DIN 373 HSS flat countersinks with straight shank and fixed pilot

Set of 6 flat countersinks for threads: M 3 ​​- M 4 - M 5 - M 6 - M 8 - M 10.
For countersinking cylindrical head screws, thread-cutting screws, and slotting screws. Ideal for deburring and countersinking without burrs or vibrations. Suitable for steel, cast iron, non-ferrous, and light metals. Best results at low cutting speeds.

Technical data:
· Number of cutting edges: 3
· Coating: uncoated
· Axis: cylindrical
· Cutting direction: to the right
· Material: HSS
· DIN: 373
· Countersinking angle: 180°

Areas of application:
· Main application: Steel 900 N/mm², Aluminum, Brass, Plastic.
· Other application: Bronze, Cast iron.