The MK Diamond 7-inch hard rubber backplate disc (part 155968) is a genuine replacement part that mounts on a hand-held polishing tool and carries the polishing pad. It comes with a 5/8-11 nut.
If your polishing setup has a worn, cracked or missing backplate, replacing it with the correct disc gets the pad seated properly again so you can get back to finishing stone and concrete surfaces.
Use cases
- Pad replacement. Swap a worn or damaged backplate on your hand-held polisher.
- Spare for the truck. Keep a matching 7-inch backplate disc ready for jobs.
- Tool upkeep. Maintain your polishing setup between pad changes.
Specifications
- Brand: MK Diamond
- Part number: 155968
- Type: Hard rubber backplate disc
- Diameter: 7 inches
- Nut: 5/8-11
Fit and compatibility
Confirm the disc diameter and the 5/8-11 thread against your polishing tool before ordering. We list only the specifications above, so check your tool manual or call us if you are unsure of fit.
Care and use
Inspect the disc for cracks or wear before each job, tighten the nut fully so the pad runs true, and replace the disc if it is damaged. Follow the tool maker's safety guidance.
Frequently asked questions
What size is this backplate disc?
It is a 7-inch hard rubber backplate disc.
What nut comes with it?
It comes with a 5/8-11 nut.
What does it do?
It mounts to a hand-held polishing tool and carries the polishing pad.
How do I know it fits my tool?
Confirm the 7-inch diameter and 5/8-11 thread against your tool specification, or contact us before ordering.
Discount Cleaning Products is an authorized MK Diamond dealer, and our US-based team can help you match the right size, arbor and tool before you order.
