Abrasive Sleeves and Drums

The sleeve is chosen according to the diameter and length required by the workpiece, and to the sleeve holder of the grinder or flexible shaft. The collection includes Fervi ceramic and zirconia sleeves and the Trizact NAT100/A006 sleeve. The bore diameter must match the support exactly.

The grit indicates how coarse the abrasive particle is. Low numbers, such as 60 or 80, remove more material; high numbers, such as 120 or 320, give a finer finish. In the product titles you will find grits from GR.40 to GR.320. Start with the coarsest grit needed and then move on to the finer ones.

Ceramic and zirconia grains are tough and suited to working metal materials with a certain aggressiveness. Silicon carbide is often used on non-ferrous materials, stone and delicate surfaces. The collection includes Fervi zirconia and ceramic sleeves, and Makita nylon rollers with silicon carbide.

Makita nylon rollers with silicon carbide are available in grits from GR.60 to GR.320 and are used for surface finishing. The grit number indicates how aggressive it is. For finishing use the finest grit, such as GR.320, after working with a coarser grit.

Wrapped abrasive rollers are cloth cylinders on which the abrasive grain is fixed. They are mounted on a shaft or a mandrel and used to work inside holes and tight spaces. In the product titles you will find sizes such as 6x38 mm, like the roller with 80 grit.

They are used by metalworkers, blacksmiths, machine shops, restorers and craftsmen who work wood or metal. They are used to smooth, deburr and finish surfaces with die grinders or flexible shafts. On non-metallic surfaces the grit must be checked case by case.

Check that the maximum speed of the grinder does not exceed that stated on the sleeve or roller, and secure the workpiece carefully. Wear safety glasses and a dust mask, because grinding dust is harmful. Do not use a damaged or off-centre abrasive, and replace it as soon as the grit wears down.