Question

nccer 00104 - introduction to power tools 48min which grinder accessory can be used to provide a stable surface for flexible sanding discs or buffing pads to rest a tool rest flap disc arbor shield backing pad

Explanation:

A backing pad is an accessory that provides a stable surface for flexible sanding discs or buffing pads. A tool rest is for supporting workpieces, a flap disc is for grinding and sanding, and an arbor shield is for protecting the arbor.

Answer:

backing pad