For handheld Angle Grinders, Polishers and the 18″ Cup Wheel Floor Plate. *

Rubber Backing Holders (3 Types) – Velcro Backing with 5/8-11 Threaded Hub

• Flexible Backer – Medium Flexibility
• Rigid – No Flexibility
• Extra Soft – Very Soft / Very Flexible

Aluminum Backing (1 Type) – Velcro Backing with 5/8-11 Threaded Hub

• No Flexibility – For Flat Surfaces

* The aluminum backing pad cannot be used with the Threaded Studs of the 18″ Floor Plate. Any of the Rubber Backing Pads can be used, the Rigid Holders are recommended (4″, 5″ or 7″).