Stone fabricator using Samurai pneumatic wet polisher on granite countertop edge

Wet Stone Polishers Built for Granite Fabrication Shops

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Samurai's wet stone polishers are pneumatic tools built for granite, quartz, and marble edge work, not general-purpose grinders with a water attachment bolted on. The Samurai ST-235 runs at 5,000 RPM with a full grit progression from 50 through 3,000, and it has become the most copied polisher in the stone market for a reason. Every unit ships with hoses and a built-in oil port, so your crew is running the same day it arrives. Need parts down the line? Replacement parts are stocked and ready to ship. Doing edge shaping too? Pair it with a wet stone grinder for the complete fabrication workflow, start to finish.

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  • Samurai ST-235 pneumatic wet stone polisher with hoses and built-in brass oil port
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    Samurai ST-235 | Wet Stone Polisher with Hoses & Built-In Oil Port

    Samurai ST-235 | Wet Stone Polisher with Hoses & Built-In Oil Port
    $423.28 USD $459.00 USD

Frequently Asked Questions

+What's the difference between a wet stone polisher and a dry polisher?

Wet polishers feed water to the pad while you work, which keeps dust down and extends pad life on granite, quartz, and marble. Dry polishing kicks up silica dust and wears through pads faster. Every polisher in this collection runs wet.

+What RPM should a stone polisher run at for granite?

Around 5,000 RPM works best for granite edge polishing through a full diamond grit progression. The ST-235 runs at exactly that, at 90 PSI and 16 CFM.

+Can I use the same polisher on quartz and marble?

Yes. Variable speed and water-fed operation make these tools work across granite, quartz, marble, and other engineered stone. Adjust pad pressure for the material you're on.

+What arbor size do these polishers use?

5/8-11, the U.S. standard thread for diamond stone tooling. That means compatibility with the polishing pads you're probably already stocking.

+How much air does a pneumatic wet polisher need?

16 CFM at 90 PSI. A shop compressor in the 5-10 HP range handles one tool comfortably; size up if you're running more than one at a time.

+Do you carry replacement parts?

Yes, parts for the ST-235 are stocked and available directly on this site, so a worn component doesn't mean waiting weeks or replacing the whole tool.