The flutes of the improved Ruko high-performance taper and deburring countersinkers are CBN-ground from the fully-hardened material. Since CBN (cubic crystalline boron nitride) is a harder abrasive compared to silicium carbide or corundum, a good and sharp cutting edge can be reached without burrs.
With its sufficient dimensional precision, the countersinkers can last considerably long, while sustaining the accurate tolerances. With the CBN deep-ground flutes, the cutting edges are highly sharp. It is suitable for burr and chatter-free deburring and countersinking.
It is also appropriate for steel, cast iron, non-ferrous and light metals. The units provide good outcomes at low cutting speeds.
This strong tool is useful for all standard industrial materials, such as non-ferrous metal, stainless steel, thermoplastics and duroplastics, and sheet metals.