Side fence and circle cutting guide for Bosch jigsaws. Fits to the baseplate and will guide the jigsaw along a straight edge or use the locking centre pin to guide the jigsaw around in a circle up to 300mm diameter. Fits models: GST 75, 90, 50, 135, 140, 160 and cordless GST18V and most other GST and PST models; GST120E, 24V, GST12V-70, PST 650, 680, 700, 800, 900 and 1000.