You see, as a "mirror pocket" finishing roll
wears, it changes the consistency of the surface.
An abrasive belt head attachment that fits onto a big bore lathe for grinding and finishing rolls
is now available from Roll Grinding Solutions, Inc.
Metal finishing rolls
range from an Ra of 0 to 0.5 micro-inches for a highly polished mirror finish for optical-grade products, up to Ra 50 or 60 micro-inches for satin-finished products, or possibly as much as Ra 300 micro-inches for embossed or coarsely textured products.
The workpieces were 6 1/2"-dia finishing rolls
with tapered ends ground to 30 microinch finish.