Description
h2>Product Overview
MJR Tumblers 60/90 Coarse Silicon Carbide Grit is a premium-grade abrasive designed for the first stage of rock tumbling. Made from high-purity silicon carbide, this grit provides effective initial shaping and surface preparation for stones, minerals, and other hard materials. Compatible with any brand of rock tumbler, it ensures consistent performance and long-lasting durability. Manufactured in the USA by a disabled and veteran-owned company, MJR Tumblers is committed to quality and reliability. This 1lb package is ideal for hobbyists, collectors, and professionals who require a dependable, high-performance tumbling media for their projects.
Usage
This grit is specifically designed for the first stage of rock tumbling, where stones are shaped and prepared for finer grits. It’s ideal for use in home workshops, industrial finishing operations, and educational settings. Whether you’re polishing river rocks, gemstones, or minerals, this coarse grit provides the necessary abrasion to remove rough edges and create a uniform surface. It’s suitable for users aged 12 and up, and works best with water-based tumbling media.
Why Choose Us
MJR Tumblers is a disabled and veteran-owned company based in Pecatonica, Illinois, committed to producing high-quality, American-made tumbling media. Their products are rigorously tested for performance and consistency, ensuring that every batch delivers reliable results. Unlike generic grits, MJR’s 60/90 coarse grit is specifically graded for optimal cutting and shaping without damaging the stone’s natural structure. The company’s focus on quality control and customer satisfaction makes it a trusted choice for both beginners and experienced tumblers.
Key Features
- High-purity silicon carbide ensures superior cutting and shaping performance for the first stage of tumbling.
- Compatible with any brand of rock tumbler, making it a universal choice for hobbyists and professionals.
- Manufactured in the USA by a disabled and veteran-owned company, supporting American craftsmanship and values.
- Designed for durability and consistent performance, reducing the need for frequent replacements.
- Customer support is available for any questions or issues, ensuring a seamless purchasing and usage experience.
FAQ
What is the purpose of 60/90 grit in rock tumbling?
This grit is specifically designed for the first stage of rock tumbling, where stones are shaped and prepared for finer grits. It’s ideal for use in home workshops, industrial finishing operations, and educational settings. Whether you’re polishing river rocks, gemstones, or minerals, this coarse grit provides the necessary abrasion to remove rough edges and create a uniform surface. It’s suitable for users aged 12 and up, and works best with water-based tumbling media.
Why Choose Us
MJR Tumblers is a disabled and veteran-owned company based in Pecatonica, Illinois, committed to producing high-quality, American-made tumbling media. Their products are rigorously tested for performance and consistency, ensuring that every batch delivers reliable results. Unlike generic grits, MJR’s 60/90 coarse grit is specifically graded for optimal cutting and shaping without damaging the stone’s natural structure. The company’s focus on quality control and customer satisfaction makes it a trusted choice for both beginners and experienced tumblers.
Key Features
- High-purity silicon carbide ensures superior cutting and shaping performance for the first stage of tumbling.
- Compatible with any brand of rock tumbler, making it a universal choice for hobbyists and professionals.
- Manufactured in the USA by a disabled and veteran-owned company, supporting American craftsmanship and values.
- Designed for durability and consistent performance, reducing the need for frequent replacements.
- Customer support is available for any questions or issues, ensuring a seamless purchasing and usage experience.
FAQ
What is the purpose of 60/90 grit in rock tumbling?
MJR Tumblers is a disabled and veteran-owned company based in Pecatonica, Illinois, committed to producing high-quality, American-made tumbling media. Their products are rigorously tested for performance and consistency, ensuring that every batch delivers reliable results. Unlike generic grits, MJR’s 60/90 coarse grit is specifically graded for optimal cutting and shaping without damaging the stone’s natural structure. The company’s focus on quality control and customer satisfaction makes it a trusted choice for both beginners and experienced tumblers.
Key Features
- High-purity silicon carbide ensures superior cutting and shaping performance for the first stage of tumbling.
- Compatible with any brand of rock tumbler, making it a universal choice for hobbyists and professionals.
- Manufactured in the USA by a disabled and veteran-owned company, supporting American craftsmanship and values.
- Designed for durability and consistent performance, reducing the need for frequent replacements.
- Customer support is available for any questions or issues, ensuring a seamless purchasing and usage experience.
FAQ
What is the purpose of 60/90 grit in rock tumbling?
- High-purity silicon carbide ensures superior cutting and shaping performance for the first stage of tumbling.
- Compatible with any brand of rock tumbler, making it a universal choice for hobbyists and professionals.
- Manufactured in the USA by a disabled and veteran-owned company, supporting American craftsmanship and values.
- Designed for durability and consistent performance, reducing the need for frequent replacements.
- Customer support is available for any questions or issues, ensuring a seamless purchasing and usage experience.
FAQ
What is the purpose of 60/90 grit in rock tumbling?
What is the purpose of 60/90 grit in rock tumbling?
60/90 grit is used in the first stage of rock tumbling to provide initial shaping and surface preparation. It removes rough edges and creates a uniform surface for finer grits to work on.
Is this grit compatible with all rock tumblers?
Yes, this grit is compatible with any brand of rock tumbler. It’s designed to work with standard tumbling media and water-based tumbling processes.
Where is this product manufactured?
This product is manufactured in the USA by MJR Tumblers, a disabled and veteran-owned company based in Pecatonica, Illinois.
What is the recommended age for using this product?
The manufacturer recommends this product for users aged 12 months and up, making it suitable for both children and adults.
How should I store this grit?
Store in a dry, cool place away from moisture and direct sunlight. Keep the container tightly sealed to prevent contamination or degradation.






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