When milling, the guide bushing runs along the contour of the template. This allows it to transfer shapes onto the workpiece and is essential when working with templates. The bayonet lock enables a quick tool-free change. The distance between the bushing and the milling bit must be considered when creating a template. This distance is calculated using the following formula: diameter of the guide bushing (K) minus diameter of the milling cutter (F) divided by 2. Diameter: 17.00 mm. Compatible with: GKF 600, GMF 1400 CE, GMF 1600 CE, GOF 130, 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, POF 1400 ACE.