Product Information Size:125mm Fastening: Velcro Number of holes: 8 Number of mounting holes: 4 screw holes OEM Part Number N329079 Our support pads are manufactured by us (Pronet) to the highest quality and exact specifications of the DeWalt backing plates with this OEM part number. This backing plate fits the following DeWalt Machines; DWE6421 Type 1 DWE6421 B2 Type 1 DWE6421 B3 Type 1 DWE6421 Br Type1 DWE6421K Type 1 DWE6423K Type 1 and more.