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HST Rock Tumbler Kit

Ages 12+
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The complete HST Rock Tumbler Kit has all you need to get beautifully polished, smooth stones at home! Open the box and get started tumbling rocks right away with the 3-pound tumbler, instruction guide, rocks, and grit. Read More

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What if you get could professional rock tumbling results without paying a premium price? When you polish rock's with the HST Rock Tumbler Kit, now you can!

This complete rotary rock tumbler kit rivals more expensive models, like the Lortone 3a and 3b tumblers. Though comparable in rock polishing quality and results, this HST tumbling kit crushes competitors in price. We work directly with the manufacturer to build this high-quality rock polisher. With no middle man, you get HST's strict standards and satisfaction guarantee at a lower price.

Rock hounds and lapidaries of all kinds will love seeing rough rock transform into shiny, semi-precious stones and gemstones!

The complete HST Rotary Rock Tumbler Kit includes:

  • HST's single-drum rotary rock tumbler with a heavy-duty, 3-pound capacity tumbler barrel
  • 2 pounds of tumbling rock, including specimens like agate, chalcedony, jasper, petrified wood, rose quartz, snow quartz, quartzite, and other rocks & minerals
  • 4 grit packs pre-measured for a 3-pound rock tumbler, including polish, medium grit, fine, and coarse grits
  • 12-page full-color step-by-step rock tumbling guide and operating instructions

Note: Polishing a batch of rocks in a rotary tumbler takes 4-6 weeks to complete. The consistent, low speed of the tumbler helps perfect those beautiful, luster-shine results!

The guide that's included in this starter rock tumbling kit also teaches the basics of rock tumbling.

Topics you'll discover with this rotary rock tumbler kit are:

  • an intro to rock tumbling,
  • the science behind it,
  • the rock hardness scale,
  • how to use a vibratory tumbler,
  • how to use a rotary tumbler,
  • erosion science experiment ideas,
  • and a rock tumbling glossary!

WarningWARNING: This product can expose you to respirable crystalline silica, which is known to the State of California to cause cancer.





HST Rock Tumbler Kit contents

  • HST 3# capacity single-drum rotary rock tumbler
  • 2# rough, unpolished rock
  • 4-stage polishing grit
  • 12-page, full-color, rock tumbling guide


HST Rock Tumbler Kit specs

  • 3-pound capacity rotary tumbler
  • Quiet, sturdy, and simple to operate
  • Durable rubber barrel is 4.5" in diameter and 5" long
  • Barrel opens and closes easily and seals tightly
  • Continuous duty 110-volt AC motor 
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My Science Perks is FREE! Just place your order while logged in to your Home Science Tools account and you'll automatically earn up to 6% back when your order ships!

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