Owner's of the Bosch Colt have been eagerly holding their horses for the new Bosch PR011 Plunge Base, and now it's here. Offering extraordinarily smooth plunge action with easy, micro-fine depth adjustments, the PR011 also features a rotatating 7-step turret-style depth stop with two adjustable stops. The plunge lock lever is easy to access near the left handle. The PR011 includes a clear sub-base that provides excellent visibility, and features a precision centering system that makes it easy to center the sub-base in relation to the bit when using jigs and templates.
Note: 21423 (Palm Router Subbase) does have a slightly smaller outer diameter of 5-1/4" when compared to 45145 - Plunge Base (5-3/4").