Home › Technical items › Supergrip interface 21 holes« Back to previous category Supergrip interface 21 holes Description Description Backing pads interface. Improves the grip of fiber sanding discs like Star Line Fiber. Features: Size: Γ 150 mm Number of holes: 21 holes Connection: SUPER GRIP 171.0590 Related products Technical itemsMini-pad Read more Technical itemsUniversal interface 97 holes Read more Technical itemsMultifunction backing pad 70×198 mm Read more