This router base is made of impact resistance PC, and pre-drilled for Japanese specificaion woodworking routers. 180mm diameter * 8mm thick. A 6mm center pin is included to help locate the base in perfect center.
Pre-drill for following models
Hitachi M12V2 M12SA2 M12VE M12SE
Makita PR2301FC PR1801
Bosch 1613AEVS