KOPVERZINKFREES - RUKO 102409 - DIN 373 HSS MIDI M4-8-4,5-5,0-71 MM

Product description:

• For producing countersinkings for cylinderhead screws, thread-cutting screws and thread-furrowing screws.
• Ideal for burr- and chatter-free deburring and countersinking.
• Applicable for steel, cast iron, non-ferrous and light metals.
• Best results at low cutting speeds.
• HSS: Heavy-duty high speed steel for drilling holes in easy-to-machine materials with a strength of up to 900 N/mm².

Features:

• Medium grade for through hole.
• For thread M 4, countersinking 8,0 mm