This is a genuine Dynabrade replacement part designed for use with sanders/buffers. It fits inside the cylinder assembly. This set includes a plastic rotor and a set of five (5) blades. To replace it you will need a screwdriver and pliers.

This is a manufacturer sourced replacement seal. It is specially produced for use with Dynabrade sanders. This is one of the seals for the tip valve/inlet bushing. Over time seals tend to shrink and crack allowing for air leaks. At that time it should be replaced to maintain top performance. It is made out of rubber material and it is sold individually.

Replacing this item you would need a wrench to replace this item.

This is a replacement lock ring is specially made for use with Dynabrade power tools. It is designed to create a seal between two connected parts. Over time o-rings will become brittle allowing for air leaks. Because of this rings should be inspected periodically. If parts are showing signs of wear they should be replaced. This is a rubber o-ring and it is sold individually.

Genuine Dynabrade replacement part, this item is sold individually.
The purpose of the 56027 Muffler is to lessen the noise of the air coming from the exhaust of the tools listed below.
It will also filter out the excess oil that is in the tool.
Once these Inserts get dirty and clogged they should be replaced.