

category
Rock Tumbler Grit
Use this rock tumbler grit kit to transform rough rocks into smooth, shiny collectibles! Contains different grits & polishes for professional-quality four-stage rock tumbling. Tumble & polish up to 12 pounds of rock!
Ages 11+
In Stock & Ready to Ship
Need It Fast? See Delivery Options In Cart.
This rock tumbler refill kit is pre-measured for a 3-pound rotary rock tumbler. Get four stages of grit: coarse, medium, pre-polish, and polish.
Ages 10+
In Stock & Ready to Ship
Need It Fast? See Delivery Options In Cart.
Already have a rock tumbler? This professional quality Rock Tumbler Refill Kit, Brazil Mix gets you started! Get 2 lbs of lapidary rough, 4 stages of pre-measured tumbling grit, and the 12-page HST rock tumbling guide.
Ages 8+
In Stock & Ready to Ship
Need It Fast? See Delivery Options In Cart.
Use these plastic pellets in your rotary tumbler to cushion the rocks you want polished. Can be reused.
Ages 10+
In Stock & Ready to Ship
Need It Fast? See Delivery Options In Cart.
Get enough grit to polish 3 pounds of rock. Includes fine grit, pre-polish, and polish (super fine).
Ages 10+
In Stock & Ready to Ship
Need It Fast? See Delivery Options In Cart.
Explore our selection of rock tumbler abrasive polishing grits to keep you tumbling.
Rock tumbler grit is an essential component of the rock tumbling process. It helps smooth and polish rough rocks and minerals. The grits range from coarse to fine, each designed to work together to achieve the best results.
We get it. Science can be messy. But Home Science Tools' products and service can handle it.
Our products are durable, reliable, and affordable to take you from the field to the lab to the kitchen. They won't let you down, no matter what they're up against. Whether it's (over)eager young scientists year after year, or rigorous requirements that come once-in-a lifetime.
And if your science inquiry doesn't go as expected, you can expect our customer service team to help. Count on friendly voices at the other end of the phone and expert advice in your inbox. They're not happy until you are.
Bottom line? We guarantee our products and service won't mess up your science study—no matter how messy it gets.
Questions? Get in touch with our Customer Service team.