These rolls are manufactured by the spiral winding and high concentration of abrasive wires around a aluminum metallic core.

wrapping on a inner core a monofilament abrasive.

It’s normally used the silicon carbide abrasive wires with the following grits: 180, 240, 320 e 500.

 

The rolls are rectified and dynamically balanced; they allow a very long life and very high precision work.