6 LBS Rock Tumbler Polishing Grits 4-Step Kit - Polishes up to 50 lbs

In this review the 6 LBS Rock Tumbler Polishing Grits kit is assessed from the perspective of a hobbyist who tumbles a range of common lapidary stones. The bottom line: this kit is best for DIYers who want a full four-step process in one package and enough grit to handle multiple batches; the single biggest reason to consider it is the generous quantities provided, which cover roughly 30-40 lbs of rocks and avoid constant repurchasing. The review looks at how the set performs, what comes in the jars, and where it fits among rock-tumbling supplies.

Key Features

• Abundant Grit Quantity: Includes 2 lbs of 60 coarse, 2 lbs of 220 medium, 1 lb of 500 fine, and 1 lb of 1200 final polish so users can complete many batches without refilling.
• Four-Step System: The kit follows a standard step progression from coarse to final polish that simplifies the tumbling workflow for consistent surface shaping and smoothing.
• Professional-Grade Final Polish: The 1200 grit is aluminum oxide, the preferred material for achieving a wet polished look during the last stage.
• Compatible with Any Tumbler: The grit is formulated to work with all common rock tumblers, letting buyers use existing equipment without extra adapters.
• Convenient Packaging: Hard plastic jars, clear labels, and an included scoop make measuring, storing, and switching grits tidy and repeatable.
• Clear Usage Guideline: The kit recommends about 2 tbsp of grit per pound of stones, providing a straightforward dosing rule for new users.

Who It's For

This kit is well suited to hobbyists, classroom settings, and families learning lapidary basics who need an all-in-one supply that will handle multiple batches without frequent purchases. The quantity and labelled jars are helpful for workshops and educational programs where several projects are run in succession.

It may be less suitable for users expecting a flawless, mirror shine on difficult stones or for professionals needing specialty grits beyond the standard four-step progression. Those seeking the absolute brightest finish on particular gem types may want to supplement the kit or test small batches first.

Pros & Cons

Pros

• Generous total weight lets users polish many pounds of stones before needing more grit.
• Logical four-step sequence simplifies the tumbling process for beginners and intermediates.
• Final polish uses aluminum oxide, which is a professional-grade choice for improved shine.
• Secure, labeled jars and a scoop reduce mess and make storage convenient.

Cons

• Polish effectiveness receives mixed feedback, and some users report only a dull luster on certain stones, so results can vary by material and process.
• May require additional polishing or extra cycles for specialty stones to reach a high-gloss finish.

Specifications

Kit Weight	6 lbs total
Step 1 Grit	2 lbs 60 silicon carbide
Step 2 Grit	2 lbs 220 silicon carbide
Step 3 Grit	1 lb 500 silicon carbide
Step 4 Final Polish	1 lb 1200 aluminum oxide
Coverage	Approximately 30-40 lbs of rocks
Packaging	Hard plastic jars with lids and scoop

Our Verdict

For hobbyists and educational users the kit offers clear value: the combined weight and labeled jars let you run many batches without interruption, and the aluminum oxide final polish gives a better chance of a wet polish finish when all steps are followed. Results vary by stone type, so expect to test and occasionally repeat stages, but as a cost-effective, ready-to-use four-step kit it is a practical choice for most non-professional tumblers.

Frequently Asked Questions

How much grit should I use per batch?
The guideline is about 2 tbsp of grit per pound of stones, which works as a starting point for each stage.

Will this kit work with my existing rock tumbler?
Yes, the grits are compatible with all standard rock tumbler brands and jars; no special equipment is required.

Does the kit guarantee a mirror shine?
The aluminum oxide final polish improves shine, but outcomes vary by stone type and technique, and some users report only a dull luster on harder or porous materials.