Porter-Cable 690 Series Router Combo Kits.

Variable Speed Kit
This kit includes a 1-3/4 HP variable speed motor with soft start. The variable speed motor ranges from 10,000 to 27,500 RPM and includes a fixed base which features an accurate micrometer dept-of-cut adjustment and lever release height adjustment (shown above). The plunge base features a 2-1/2" plunge range, depth rod and 6 position step turret. 11 amps, AC only, 1/4" & 1/2" collets.

Also available is a micro-adjust edge guide
For absolute precision, just slide your PC router into the general area, lock the edge guide and fine-tune to the exact position.