Bosch Plunge Base for PR20EVS and PR10E Colt™ Palm Router MotorCompatible with Bosch PR20EVS and PR10E Colt palm router motors Smooth plunge action The plunge lock release lever is conveniently located to allow maximum control, springs to locked position for use of use 7 step adjustable depth stop turret and microfine adjustment on depth rod allow fast, accurate bit depth setting The transparent subbase provide enhanced visibility The precision centering design makes it easy to keep bit on intended outline when