Spot-Buff Backing Plates w/Extensions
True tight-area sanding & polishing just became a reality.
Small-diameter buffing pads are rapidly becoming must haves for tight-area sanding and polishing tasks. When mounted to compact 1", 2", and 3" polishing machines, our backing plates, extensions, & pads eliminate much of the difficulty and stress associated with critical tight-area work.
There are three unique backing plates available:
• 32mm Vinyl Face 1125
• 32mm Velcro Face 1125G
• 2-inch Velcro Face
Specifications for the 32mm-diameter backing plates.
These backing plates feature 1/4-20 female plastic threads, and are rated to withstand up to 13,000 RPM. They measure 32mm in diameter (1-1/4"), and are 3/4" tall. You will need an adaptor or extension to install these onto your machine. We offer these backing plates in three thread sizes:
• 1/4-20 thread : Factory size
• 6mm x 1.0 thread : Requires re-threading / $1.50 additional fee
• 5/16-24 thread: Requires drilling & re-threading / $3.00 additional fee
Specifications for our 2-inch diameter backing plate.
This backing plate measures just under 2". It features 5/16-24 female thread. Usually, you will need an adaptor or extension to install it onto your machine. It was derived using the Meguiar’s S3BP 3” Backing Plate.
Use an adaptor or extension to mount these plates onto the machine.
The adaptors & extensions we offer for purchase are simple, rudimentary devices. They are made using a piece of all-thread, one or two jam nuts, a pair of washers, and a slip-on sleeve (designed to hide the exposed length of threaded stud). They have not been safety or long-term tested. We are offering them as a convenience, so that these backing plates can be better utilized. By all means, if you are in need of a tried & tested mounting utensil, we encourage you to search out a better option, or build one yourself. Always use caution, particularly when the installation of a smaller diameter backing plate (or an extension) causes the machine's rotating assembly (counterweight & componenets) to become exposed. Keep fingers, hands, aprons, sleeves, & toweling away from the rotating assembly!
Choose the ideal adaptor or extension.
Mounts the backing plate directly onto the machine.
No deliberate lengthening of the space between the backing plate and the machine.
• Short Extension
Increases the distance between the backing plate and machine approximately 1".
When using the 2" plate on the Rupes TA50 or Chicago Pneumatic 93629, extensions
longer than 1" should be used with caution, and at very low machine speeds only.
• Medium Extension
Increases the distance between the backing plate and machine approximately 1-1/2".
• Long Extension
Increases the distance between the backing plate and machine approximately 1-3/4" or more.
For rotary-action machines only! Installation on orbital and random orbital polishers will increase
stress on the spindle bearings, and negatively impact machine balance (making it difficult to control).
These plates can be mounted to a variety of machines, including:
• Mirka® MR-30 3" Bulldog Rotary Polisher • 1/4-20 thread
• Rupes® TA50 2" Random Orbital Sander/Polisher • 6mm x 1.0 thread
• Griot's® 10739 3" Random Orbital Sander/Polisher • 5/16-24 thread
• Metabo SXE400 3" Random Orbital Sander/Polisher • 5/16-24 thread
• Harbor Freight's Central Pneumatic® 93629 2" Mini Orbital Air Sander
(These feature either 6mm x 1.0 or 1/4-20 thread)
If your machine uses 6mm x 1.0 thread:
-The distance from the peak of one thread to the next will be 1mm.
-There will be approximately 26 threads per inch.
If the machine uses 1/4-20 thread:
-The distance peak-to-peak of six threads will be 1/4".
-There will be 20 threads per inch.
Need a buffing pad system for your Spot Repair setup?
Add an 8-Piece Buffing Pad Kit to your order (see photos for in-depth descriptions).
View the entire line of small-diameter pads.
Available in two sizes: 1-1/4" (32mm) • 2-1/8" (54mm)