Quick-Chuck 70046 Large Backing Plate adapter (7.250").
Large Backing Plate for Brake Lathe 3-Jaw Chuck Kit 7-1/4" OD for 1" QuickChuck
Brake Lathe Large Backing Plate for Lite Dual Chuck Adapter Fits 1" Arbor
Medium Backing Plate for Brake Lathe 3-Jaw Chuck Kit 5-3/16" OD for 1" Quick
Small Backing Plate for Brake Lathe 3-Jaw Chuck Kit 4-3/4" OD for 1" Quick
Totota Backing Plate for Brake Lathe 3-Jaw Chuck Kit 6-1/4" OD for 1" QuickChuck
Medium Backing Plate for Brake Lathe 3-Jaw Chuck Kit 5-1/4" OD for 1" Quick