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Boxed set of grit packets and plastic buffering pellets for rock tumbling

RTumbler, LLC

RTumbler, LLC 4-Step Rock Tumbler Grit Kit 15 lb with Buffering Pellets

SKU CH-WGSJ-GGHR2

Four-step silicon-carbide and aluminium-oxide grit kit with buffering pellets for a 15 lb rotary or vibratory tumbler

  • Product typeScience
  • Age groupAdult
  • Suitable forUnisex
  • Four-step polishing process covers coarse to final shine
  • 1 lb 60/90 coarse silicon carbide removes material fast
  • 1 lb 120/220 medium silicon carbide refines surface
  • 1/2 lb 500 fine pre-polish prepares for final gloss
  • 1/2 lb 1200 aluminum oxide polish delivers mirror finish

Complete 15 lb Tumbling Kit

This four-step grit kit supplies every abrasive stage needed for a 15-pound rotary or vibratory tumbler. It also works for five separate three-pound batches. The package includes coarse, medium, pre-polish and final-polish grades plus buffering pellets.

Coarse to Polish Abrasive Sequence

One pound of 60/90 silicon carbide starts the shaping process. A second pound of 120/220 silicon carbide refines the surface. Half a pound of 500 silicon carbide prepares the stones for final polish. Half a pound of 1200 aluminum oxide delivers the finished shine.

One Pound Buffering Pellets Included

Virgin plastic pellets float during tumbling to cushion stones and prevent chipping. They also carry grit into tight crevices for more even abrasion. The pellets are reusable across multiple batches. Step-by-step instructions with a measurement chart cover all popular tumbler sizes.

How it compares

Measured against everything we stock in STEM Kits & Building Blocks, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 64% of the 236 comparable items (median $28.99).

Specifications

Product
Product typeScience
More details
Age groupAdult
Suitable forUnisex

Questions about this item

How do I install the 60/90 coarse silicon carbide grit in my 15 pound tumbler and what step do people skip?

Add the 1 pound 60/90 coarse silicon carbide grit with rocks and water following the included step by step polishing directions and grit measurement chart; the step people skip is measuring the correct grit volume for their specific tumbler size before starting.

What maintenance or replacement will the 1 pound plastic buffering pellets need later?

The 1 pound plastic buffering pellets are floating virgin plastic media used as a cushion; they wear down and lose buoyancy over multiple tumbling cycles and should be replaced when they no longer provide adequate buffering action.

Which limit shows up first under sustained use with the 1200 aluminum oxide polish?

The 1/2 pound 1200 aluminum oxide polish depletes fastest during the final polishing stage and will need replenishment before the larger 1 pound coarse and medium grit packages run out.

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