Norton 99538 Drywall Backing Pad 5035XL Overload protection is designed to

Overload protection is designed to protect the motor from burnout during abnormally high torque situations

great runtime and longer life

and a quick release cam lock system for convenient depth adjustments and base removal/installation

designed to keep the hand close to the workpiece for additional control

Norton 99538 Drywall Backing Pad 5035XL Overload protection is designed toPorter Cable 7800 Drywall Sander Replacement Pad The 99538 9" hook and loop drywall backing pad for use with the Porter Cable 7800 Drywall Sander. Standard Equipment: 99538 Foam H&L Backing Pad Features: Fits the Porter Cable 7800 drywall sander Use with Norton abrasive discs for an inexpensive drywall sanding alternative