When milling, the guide bushing runs along the contour of the template. This transfers shapes to the workpiece and makes them indispensable when working with templates. The bayonet lock allows for quick, tool-free changes. The distance between the bushing and the cutter must be taken into account when creating a template. This distance is calculated using the following formula: diameter of the guide bushing (K) minus diameter of the cutter (F) divided by 2. Diameter: 40.00 mm. Compatible with GKF 600, GMF 1400 CE, GMF 1600 CE, GOF 900, GOF 900 ACE, GOF 900 CE, GOF 1600 CE, GOF 2000 CE Professional, POF 800, POF 1100 AE, POF 1200 AE, POF 1300 ACE.