10 lbs Tumbler Media Grit 120/220 Silicon Carbide - Step 2 Polishing

In this review the reviewer focuses on the 10 lb 120/220 silicon carbide grit from GANGOU and why it is a dependable choice for hobbyists and small shops. The bottom line: this bag is for anyone who already has rough-shaped stones and needs a reliable medium grit to smooth surfaces before finer polishing. It proved consistent in grain size, packaged in an easy-to-use wide-mouth container, and worked without fuss in multiple brands of tumblers. For those wanting predictable Step 2 results, this grit delivers the balance of cutting power and surface refinement needed to move stones toward the final polish.

Key Features

• Medium 120/220 grit: Provides the right abrasive action for removing rough marks left by coarse stages while beginning surface smoothing.
• 10 pound quantity: Ample media for multiple batches or larger loads so you do not need to repurchase after a few uses.
• Silicon carbide composition: Hard, sharp particles that maintain cutting efficiency through a typical tumbling cycle.
• Wide-mouth container: Makes measuring and pouring grit into a tumbler simpler and less messy than loose bags.
• Compatibility with any tumbler: Works with most brands of rock tumblers and stone polishers without special adapters or changes in procedure.

Who It's For

This grit is aimed at lapidary hobbyists, school programs, and small craft businesses that tumble agates, jaspers, and other semiprecious stones. It is especially useful for users who have completed an initial shaping or coarse tumbling stage and need a dependable medium-step abrasive to remove remaining pits and scratches.

Those who should look elsewhere include people seeking a single-step polish without intermediate abrasives or professionals needing industrial-scale quantities and specialized grits. If you require an ultra-fine polish stage, you will still need additional fine grit after this Step 2 product.

Pros & Cons

Pros

• Consistent 120/220 grading delivers reliable smoothing results between coarse and fine stages.
• Generous 10 lb supply supports multiple batches or larger tumbler loads without frequent reorders.
• Packaging and container design reduce spills and make dosing easier during setup.

Cons

• As a medium grit it is not a final polish, so buyers must still purchase finer grits for the finishing stage.

Specifications

Our Verdict

The 10 lb 120/220 silicon carbide grit is a practical, cost-effective Step 2 abrasive for hobbyists and small shops who want consistent smoothing between coarse shaping and final polish. Its 10 lb volume and convenient container add value, and compatibility with most tumblers makes it an easy addition to a tumbling workflow. Buy this if you need predictable medium-stage results and plan to follow with finer grits for the final shine.

Frequently Asked Questions

Is this grit compatible with my tumbler?
Yes, it is formulated to work with any brand of rock tumbler or stone polisher.

How much grit do I get?
The package contains 10 lbs of 120/220 silicon carbide medium grit.

Will this give a finished polish?
No, this is a Step 2 medium grit for smoothing; a finer grit is required for the final polish.