3M™ Disc Pad Hub has an internal threaded metal insert that threads onto the shaft of a sander and grinder to hold a disc pad face plate and fiber disc in place.

Our 3M™ Disc Pad Hub holds the face plate firmly in position to support a fiber disc with a 7/8 inch center hole, which is secured to the hub with a compatible retainer nut. The disc pad hub enables operators to select face plates with four different densities—Soft, Medium, Hard and Extra-Hard—offering the convenience of using a single power tool for multiple grinding applications. Face plates are sold separately.

• Threaded metal insert fits onto standard rotary sander or right angle grinder
• Rigid hub provides firm support for fiber disc face plate
• Versatile hub holds fiber disc face plates of all densities
• Disc pad hub only—disc pad face plates and fiber discs sold separately
• Various sizes available for different sized face plates

• Color: Black
• Part Number: 28442
• Product Type: Back-up Pad
• Thread Size: 3/8-24 INT x 5/8-11 EXT
• Type: Retainer Nut