6" Diameter Hard Backing Pad Bosch parts keep your tools working their best for any application you can come up with. Features: 6" Diameter For Models 1250DEVS, 1370DEVS, 3727DVS, and 3727DEVS Bosch has been in the headlines of state of the art development for over 100 years. From the invention of the jigsaw to their ergonomic designed tools, Bosch as cared about the customer since they started business in 1886.