The SM Arnold Large Professional Back Plate – 69-080 is a heavy-duty backing plate engineered for use with 7.5″ to 9″ compounding and buffing pads. With a 7.125″ diameter and J-Hook fastener, this plate provides a secure grip and quick pad changes during detailing sessions. Built to fit polishers with a 5/8″-11 threaded arbor, it delivers professional-grade stability and precision for a flawless finish every time.
Perfect for auto detailers, body shops, and car care professionals, this back plate ensures even pressure distribution across large surfaces, minimizing swirl marks and optimizing polishing performance.
Applications
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Use with wool or foam buffing pads
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Compatible with rotary polishers featuring 5/8″-11 thread
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Ideal for compounding, polishing, and finishing
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Suitable for automotive, marine, and RV detailing
Features
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Size: 7.125″ diameter
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Compatibility: Fits 7.5″ to 9″ pads
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Thread Size: 5/8″-11 for most rotary machines
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Attachment: J-Hook design for strong grip and fast pad swaps
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Professional Grade: Designed for high-performance detailing
