United Abrasives TrimBack Flap Discs,TrimBack Type 27 Regular Density Flap Disc, 7/8 Arbor - No Hub 70858

Specially designed ABS plastic backing can easily be trimmed away to expose more abrasive material.Unique design is ideal for hand rail and fillet weld applications.High performance zirconium grain for a wide variety of applications.Contaminant Free (Fe + Cl + S < 0.1%).Type 27., Only the TrimBack??????????line of flap discs are able to be trimmed to expose more abrasive overhang.Never trim beyond the maximum trim line (more than 1/4") or the ridged edge of the backing TrimBack??????????plastic backing.Always mount a TrimBack??????????flap disc on a properly guarded right angle grinder.To properly trim a TrimBack??????????flap disc, apply the plastic backing to a secured metal workpiece while the grinder is running.TrimBack??????????is also available in a Type 29 Shape.