Pfaff Extension Table With Adjustable Guide. 821181096Pfaff Extension Table With Adjustable Guide (821181096). Compatible machine groups: J Designed and manufactured for Pfaff machines this extension table attaches to your machine the same way as your accessory box and substantially increases your work area. It is very stable and because no legs are needed you have the clearance underneath the extension table for circular items. The Adjustable Guide with ruler has both centimeters and inches to allow you