Does IR offer a hook and loop for the 8 inch geared orbital sander (328B)?
No, Ingersoll Rand no longer offers an 8" diameter, 5 hole Hook and Loop (Velcro®) pad for the 328B Sander.
An alternative option available is the vinyl pad (328B-828-8) for use with 8" PSA (Pressure Sensitive
Adhesive) abrasive discs which are also referred to as "stick on" discs.
For information, the bolt pattern of the pad is 5 screws on a 4" diameter circle.