Which grinder accessory can be used to provide a stable surface for flexible sanding discs or buffing pads to rest against? flap disc backing pad arbor shield tool rest

## Step 1<br />The problem is asking us to identify the grinder accessory that provides a stable surface for flexible sanding discs or buffing pads to rest against. The options provided are flap disc, backing pad, arbor shield, and tool rest.<br /><br />## Step 2<br />A flap disc is a type of sanding attachment that consists of overlapping pieces of material, usually paper or cloth, that are glued together. It is used for sanding and finishing.<br /><br />## Step 3<br />A backing pad is a component that holds the sanding or buffing disc in place against the workpiece. It provides a stable surface for the disc to rest against, ensuring that the disc does not flex or move during operation.<br /><br />## Step 4<br />An arbor shield is a protective cover that shields the arbor of a grinder. It does not provide a surface for the disc to rest against.<br /><br />## Step 5<br />A tool rest is a component that supports the workpiece during operation. It does not provide a surface for the disc to rest against.<br /><br />## Step 6<br />Based on the above analysis, the correct answer is the backing pad, as it provides a stable surface for the flexible sanding discs or buffing pads to rest against.