Biro 722, 822, 922 Worm Assembly Complete Replaces CS22A serial # 10377 on. Worm Assembly for Biro New Model 722, 822 & 922 Meat Grinders. Serial number 10377 and after serial number 10377. To Check for New Style Model, The Worm Drive Shaft is 4-1/8 Long. Listing and template services provided by inkFrog. Shore Meat Saw Parts. Old Hobart Mixer Parts. Here at D & T PARTS SUPPLY we specialize in. Hobart VS9 Pelican Head. Shore Meat Saw Parts, Shore Parts and Old Hobart Mixer Parts are a Part of. All Parts are Provided by us. With Biro, Globe, Hobart, Hollymatic or Butcher Boy Companies.