Dynabrade® Contact Arm Assembly measuring 5/16" X 3/8" includes a wheel made of steel and a thin platen pad of 1/2" wide that are suitable to use with 1/2" X 18" L belts. Arm assembly is compatible with dynabrade air tools. Arm assembly can withstand a maximum pressure of 45 psig and can enter the channels that are as small as 7/16".
