5-disc design conforms well for irregular surfaces as well as in grates and tracks|Durable non-woven material and medium grade abrasive provide uniform cut-and-polish results|Conformable and flexible disc gets into hard-to-reach areas|Convenient 3M Roloc attachment system offers quick and easy disc change-out for multi-step finishing processes|Provides high cut-rate and low heat retention, allowing extended contact with the workpiece