The Fein Starlock Max SLM 13x6 Recess Cutting Tool (63903246220) is the new standard for multitool applications. This accessory is color coded for easy identification. This recess tool is designed for groove cutting in rigid foam panels for 1/2" and 3/4" hot water tubes as well as conduits for electrical installation. The Starlock Max system directly fits post 03/2016 Fein and Bosch oscillating multi-tools. This accessory is designed with a future proof "cake tin" pattern that gives it a more secure three dimensional connection for maximum stability, precision, and performance. The accessory information is laser etched onto the blade surface and each blade is designed to give the best performance and be backwards compatible.