The discs measure 4.5 in (diameter) x 7/8 in, and in addition to composites, they can be used for stainless steel, metals, aluminium, and wood.
The discs measure 4.5 in (diameter) x 7/8 in, and in addition to composites, they can be used for stainless steel, metals, aluminium, and wood.

A line of Type 27 flexible mesh abrasive wheels in several grades for grinding, sanding, and preparing the surfaces of composite wind turbine blades, fibreglass boat hulls, and related products for coating, is available from Rex-Cut Products.

Rex-Cut® Sigma Screen™ Multi-Purpose Discs feature a blend of zirconia-ceramic abrasive grains bonded to a flexible mesh depressed centre Type 27 wheel and come in coarse, medium, fine, and very-fine grades. The discs are said to be faster and cooler than solid resin fibre discs when grinding and finishing composites or fibreglass. According to Rex-Cut Inc of Fall River, Massachusetts, USA, they are also chatter-free and clog-resistant.

The discs measure 4.5 in (diameter) x 7/8 in, and in addition to composites, they can be used for stainless steel, metals, aluminium, and wood.