Production of RUKO step drills

Production and signing of RUKO step drills.
The flutes of RUKO high performance step drills are CBN ground from the solid hardened form.
Because CBN (cubical boron nitride) is a much harder abrasive than even silicium carbide or corundum, a better and sharper cutting edge is
achieved - without burrs.
With higher dimensional precision the drills will last considerably longer while maintaining the precise process tolerances.
The ideal tool for sheet metal working in the following sectors of industries: electrical, sanitary engineering and heating technics or automotive, mechanical engineering, aviation, and switching systems.
This tough tool is suitable for all standard industrial materials: nonferrous metal, special steel, thermoplastics and duroplastics as well as sheet metals up to 4.0 mm thickness.
This durable and versatile tool will center, spotdrill, bore and debur - all in one smooth, high performance working cycle.

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Zwei Bohrer gekauft Durchmesser 11 mm ein Loch gebohrt teil Schrott der bohrer bohrte 11,5 da die schneiden einen über schliff hatten habe dann erst mal dem Händler angerufen alle 11elfer Bohrer hatten den über schliff da sag ich mal top Qualität