The Lavina adapter easily attaches to Lavina grinding machine, and allows the fast change system to be outfitted with both HTC and Husqvarna Redi lock tools. Installation is simple and quick which simply slides in the adapter and attach the tooling. This adapter has HTC block with Husqvarna Redi-lock groove and allows you to run both HTC and Husqvarna Redilock tooling on any Lavina grinding machine.