Ruko Step drill bit HSS, spiral fluted with cross grinding
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At a Glance
Suitable for metallic materials
The HSS step drill processes materials such as steel, aluminium, bronze, cast iron, plastics and brass with a strength of up to 900 N/mm².
Four integrated machining steps
The tool centres, pre-drills, drills and deburrs sheet metal with diameters from 4.0 to 30.0 mm without the need for a tool change.
Reduced build-up edge formation
The spiral flute ensures clean chip evacuation, thereby preventing material build-up on the cutting edges even at high working speeds.