Bench Dog 40-075 ProPlate Aluminum, Group 2 predrilled; with bit hole reduction rings. Plate size 8-1/4 by 11-3/4 by 3/8 inches Plate predrilled for Bosch 1619, Freud FT2000E, Hitachi M12V plunge router, and Makita 3612. 2 insert rings give 3 different bit holes sizes: 2, 2.6, and 3.6 inches Mounting hardware is included; fits ALL Bench Dog router tables. Precision machined on CNC mills and hard-coat anodized for extreme wear resistance