Festool 490118 Circle Cutter Attachment For PS 300 And PSB 300 Jigsaws
Attach the accessory Circle Cutter to your Festool jigsaw for precise circles ranging in diameter from 4 23/32 inches to 28 11/32 inches (120 - 720 mm).  Steel circle cutter attaches to base plate of jigsaw with thumb screws and comes with a centering mandrel.  For use with both the Festool PS 300 and PSB Jigsaws.  Made in Germany.