The Grindmaster 86430 Coffee Grinder Burr Set 890 provides consistent grinding performance to used achieve a uniform coffee grind for everyday brewing. This replacement burr set is designed for compatible Grindmaster coffee grinder models and uses two precisely fitted grinding surfaces to break coffee beans into smaller particles. As the grinder operates, the burrs rotate against each... https://www.hnkparts.com/grindmaster-86430-coffee-grinder-burrs-890-51611