Description

9″ Shrinking Disc and Backing Pad

9″ Shrinking Disc and Backing Pad  Fast Coverage for Large Panels

The original smooth and safe-edge shrinking disc, now in a full 9″ size.
This stainless steel disc is built for heavy-duty use on hoods, doors, roof skins, and quarter panels.
With the included 9″ backing pad, you’ll get proper support and smoother results on every pass.

Why Choose the 9″ Shrinking Disc?

• Large coverage area – Quickly shrinks stretched panels across wide surfaces.
• Professional-grade build – Made from .060″ stainless steel for years of safe, reliable use.
• Trusted by builders – Used worldwide by restorers, hot rod shops, and metal shapers.
• Essential after welding – Master butt welds and eliminate distortion without filler.

9″ Backing Pad (Included)

Designed specifically to support the 9″ shrinking disc, this backing pad ensures safe and consistent performance.
Proper mounting includes a 3″–4″ flange hub (standard on most 7″ or 9″ right-angle grinders), then the backing pad, then the shrinking disc.
The securing nut should sit below flush so it won’t interfere with your panel work.

How It Works

The disc generates controlled heat on stretched high spots.
When cooled with water, the metal contracts and shrinks, restoring the panel.
This method removes the need for heavy filler, leaving a panel smooth and primer-ready.

FAQ

What panels is the 9″ disc best for?
It’s ideal for large, flat or gently curved surfaces such as hoods, doors, roof skins, and quarter panels.

Can I use the 9″ disc without a backing pad?
No the backing pad provides critical support. Without it, the disc may flex, reducing control and results.

Is the 9″ disc beginner-friendly?
Yes, but it runs hotter and faster than the 5″ version. Beginners often start with the 5″ disc for control, then use the 9″ for larger jobs once confident.

Please also check out our article on how we removed a 30 years old dent with simple hand tools and our shrinking disc.