Description
The Cup Buster cupwheel removal tool is a specialized adapter designed to make removal of threaded 7″ diamond cupwheels fast, simple, and safe—even when a dust shroud is in place. It works with breaker bars, impact wrenches, or standard ratchets to give you the leverage needed to spin off stuck cupwheels without damaging your grinder or the cup itself.
This tool is precision-cut from AR500 3/8″ steel plate, ensuring it’s tough enough for the job and won’t flex under load. Slots are sized to fit most 7″ cupwheels, and setups can be customized using commonly available 5/16″ or M8 hardware. You provide your own bolts and pins based on your tool and shroud combo. It’s a universal solution that can be adapted to fit many brands and configurations.
The cup buster cupwheel removal tool is ideal for pros who regularly swap wheels or deal with stuck hardware during teardown or changeovers. It even works on some smaller diameter cupwheels with open backing designs. Whether you’re using a breaker bar or cordless impact, this tool helps reduce downtime and setup frustration.
Key Features:
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Removes 7″ threaded cupwheels with dust shrouds still attached
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Compatible with 3/8″ or 1/2″ drive tools
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Accepts 5/16″ or M8 bolts (user-supplied)
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Universal slot design fits most 7″ cupwheels
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Made from hardened AR500 3/8″ steel
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Great for impact or hand ratchet use
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Bench-test before jobsite use to confirm fit
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Custom designs available on request
Save time and protect your equipment with a tool designed specifically for cupwheel removal. Fast, simple, field-tested.
Pair with our 7″ premium cupwheels for fast removal and reinstallation workflows.
See this guide on diamond cupwheel types and their mounting systems.