Large Rock Tumbler Grit Kit 10 lb – KoolStone 4-Step Ceramic Media

Description

Product Overview

The Large Rock Tumbler Grit Kit from KoolStone is a comprehensive 10‑pound package that equips lapidary enthusiasts with everything needed for a full four‑step polishing cycle. Inside the sealed box you will find two pounds of coarse 60‑grit silicon carbide for the initial shaping stage, two pounds of medium 150‑grit silicon carbide for smoothing, two pounds of fine 400‑grit silicon carbide for fine grinding, and two pounds of ultra‑fine 1200‑grit silicon carbide for the final polish. In addition, the kit includes a blend of ceramic and plastic pellets that act as tumbling media, providing a gentle yet effective abrasive action that protects delicate stone surfaces while accelerating the polishing process. The kit is engineered to work with any rotary or vibratory tumbler, making it a versatile solution for hobbyists, classroom settings, and professional workshops alike. With a capacity to process up to 70 pounds of rock per batch, the kit offers a cost‑effective way to maintain a continuous workflow without the need for frequent re‑ordering of consumables.

Usage

Using the KoolStone Grit Kit is straightforward and follows a proven four‑step methodology. Begin by loading your tumbler barrel with the desired amount of raw stones, then add the appropriate amount of coarse 60‑grit silicon carbide—approximately two tablespoons (about 25‑30 g) per pound of stone. Fill the barrel with enough water to fully submerge the stones and grit, then seal the tumbler and let it run for 7‑10 days. After the first stage, drain the barrel, rinse the stones, and replace the coarse grit with the medium 150‑grit silicon carbide, repeating the same water‑to‑stone ratio. Continue this process through the fine 400‑grit and finally the ultra‑fine 1200‑grit stages, each time ensuring the stones are clean and the water level is adequate. The included ceramic and plastic pellets can be added at any stage to improve the tumbling action; they help to cushion the stones, reduce chatter, and promote an even polish. This kit is suitable for a wide range of rock types, including agate, jasper, quartz, and even softer stones like turquoise, making it an ideal choice for both beginners learning the basics of lapidary work and seasoned professionals seeking consistent, high‑quality results.

Why Choose Us

KoolStone has built a reputation for delivering premium lapidary supplies that combine durability, performance, and value. Each batch of grit is sourced from reputable manufacturers and undergoes rigorous quality control to ensure uniform particle size and consistent abrasive power. The ceramic and plastic pellets are manufactured using high‑grade materials that resist wear and maintain their shape throughout the tumbling process, extending the life of your kit and reducing waste. In addition to the superior product quality, KoolStone provides responsive customer support, a clear warranty policy, and detailed usage guides that help you achieve the best possible results. Whether you are polishing a single gemstone or processing large quantities for a commercial operation, the reliability of KoolStone’s grit and media translates into smoother finishes, less re‑work, and higher overall productivity.

Key Features

• Complete four‑step polishing system in one convenient 10 lb kit
• Includes both ceramic and plastic pellets for gentle, efficient tumbling
• Capable of processing up to 70 lb of rocks per batch, reducing downtime
• Compatible with all rotary and vibratory tumblers, ideal for any workshop
• Backed by KoolStone’s dedicated support team and warranty for peace of mind

FAQ

What types of rocks can I polish with this kit?

The kit works well with most common lapidary stones, including agate, jasper, quartz, amethyst, turquoise, and many others. Softer stones may require shorter tumbling times, while harder stones benefit from the full four‑step cycle.

How much grit should I use per pound of stone?

We recommend about two to three tablespoons (approximately 25‑30 g) of grit for each pound of stone in each polishing stage. Adjust the amount slightly based on stone size and desired finish.

Can I reuse the ceramic and plastic pellets?

Yes, the pellets can be reused for several cycles as long as they remain intact and free of excessive wear. Inspect them regularly and replace only when they become overly fragmented.

Is this kit suitable for beginners?

Absolutely. The kit includes detailed step‑by‑step instructions and all the necessary abrasives, making it an excellent choice for those new to rock tumbling as well as experienced lapidarists.

What is the warranty on this product?

KoolStone offers a one‑year limited warranty covering manufacturing defects. If you encounter any issues, contact our support team for a replacement or refund.