Rob Cosman's Marking Gauge

A Refined, Precision-made Marking Gauge - all you need, nothing you don't

I have used many types of marking gauges over the years since I was taught cabinetmaking by hand in the 1970s by an Amish master. When I explored Rob's videos related to dovetailing and sharpening, it became clear that he has distilled technique to its essence and tools to their most effective form. I first invested in his dovetail saw and associated accessories to see if the combined use of these actually produces a more elegant joint. I can say my investment has not been in vain. I pride myself in my hand cut dovetails, and now, using the system he espoused, are about as close to flawless as one could get. So, given that positive experience, I opted for his marking gauge. As the owner of a gauge with etched measurements, I initially thought use of the Cosman version might take more time, but after pulling out and using my Starrett gauge blocks with it, I realized that with the other gauge, I was working slower, as I was always checking setting to ensure I was actually on the mark. So, another win, and I'll be buying a second one so I don't have reset each time. Although the tools are expensive, I have not regretted one purchase. Love the Adjustars too.

Long time coming...

I've been wanting one of these for years now. Finally purchased one and got to use it for the first time the other day. What an absolute treat. Above and beyond anything else.

Cosman's Marking Gauge

Cosman's marking gauge is heavier construction than those I already have. I like the heftiness of this gauge now that I am in my late 70's. And I use it in a way that leverages this more robust design. I set it for the depth of my dovetails and then use it to "route" the bottoms of them cleaning out any high points that would compromise the otherwise perfect fit. Of course some chisel work may be required too to clean out corners where the round cutter can't reach. I learned about this tool while taking Rob Cosman's Handtool Workshop. If you are at all interested in working with hand tools take this 6 day workshop! And support his Purple Heart Project even if you don't take the course.