RUPES MILLE Backing Plate for LK900E (Choose 125 mm or 150 mm) The RUPES MILLE backing plate for the gear-driven polisher LK900E is available in two OEM sizes: Ø125 mm (5") and Ø150 mm (6"). Select the correct size based on your preferred backing pad diameter and workflow. Available Sizes & OEM Part Numbers Backing Pad Size RUPES Code Interface Holes Hardness Tool Fitting Fitting 125 mm (5") 980.037/C Velcro 6+1 Hard LK 6xM4 150 mm (6") 981.089/C Velcro 6+8+1 Hard LK 6xM4 How to Choose: 125 mm vs 150 mm Choose Ø125 mm (5") if you want the 5" backing pad size option for the LK900E. Choose Ø150 mm (6") if you want the 6" backing pad size option for the LK900E. Fitment Designed for RUPES MILLE gear-driven polisher LK900E. OEM-style backing pads with Velcro interface for hook & loop polishing pads.