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: Ø 150 mm Number of holes: 21 holes Connection: SUPER GRIP 171.0590 Related products Technical itemsDry-Coat 2.0 Read more Technical itemsBacking pad – ø 125 mm 33 holes Read more Technical itemsCleaning brush for wool pads and discs Read more