I tested seven trim routers for a Fine Homebuilding tool test last year (FHB #264). There were several close contenders, but my favorite was the Bosch Colt. Now there’s a new Bosch Colt on the market, and its variable-speed, soft-start motor has been beefed up from 1 hp to 1-1/4 hp. I was able to run a 3/4-in. mortising bit through various woods at successively deeper passes with no problem under heavy load. I found myself comparing it favorably to my larger routers. The new Colt also has a bright LED that makes it much easier to follow pencil marks when freehand routing. I wish you could turn off the light at times, but I’m happy it’s there.

Perhaps the best new feature on this router is the unique depth-adjustment system. A large knob allows the user to lock, micro-adjust, or macro-adjust the depth of cut. The issue with the previous Colt router was the possibility of accidentally changing the depth setting during cutting if you didn’t put pressure on the base as you locked it. The new version solves the problem. Once the base is unlocked, it adjusts easily.

At 4.4 lb., the new Colt is heavier than its predecessor. It’s also a little taller and wider, which makes it more stable, but a little less comfortable to hold for long periods of time. The tool’s only other real flaw is a slight propensity for chatter. I haven’t been able to determine if it’s the polycarbonate base, the tool’s height or weight, or a combination of contributing factors. To prevent the chatter, I found myself having to be a little slow and cautious when rounding edges and chamfering. All in all, this is a fantastic router, and I can already tell it’s going to be my go-to for most work.

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