It's a shame that the JMR tubing notcher has to be labeled a holesaw notcher, because it's NOTHING like the cheap holesaw notchers that most of you are probably familiar with. In fact, forget that you've ever seen a holesaw notcher before. As an exercise in design, the JMR tubing notcher is a complete success. The craftsmanship and quality is evident in every feature and detail. The only downside is that you'll pay top dollar for it. At almost $600, this thing is expensive (for a holesaw notcher). But set that fact aside for just a minute. It’s not as hard to justify the expense after taking a closer look at it.

The pivot location is probably the most distinguishing feature of this tubing notcher. It was thoughtfully placed at the intersection where the holesaw and material meet, so you don't have to reposition the material to change notch angles. This might seem like a small detail, but it makes all the difference in the world when you're actually using it.

It's designed to be powered by any 1/2" drill and the massive 1.125" induction hardened holesaw shaft ELIMINATES deflection. Seriously. You can notch a piece of tubing and then move it over as little of a 1/16^" and re-notch the tubing instead of wallowing into the first cut. The additional rigidity also makes holesaws seem to last forever. I've made literally hundreds of notches with the first holesaw blade that I purchased for it and haven't come close to wearing it out yet.

The holesaw shaft rides on high-quality sealed Timken bearings that run in an open oil bath. I've been using this notcher frequently for the past eight months and I haven't seen the slightest hint of contamination or wear.

The holesaw blade is threaded onto an allen set-screw, which is nice for two reasons. First, it's cheap and easy to replace if the threads get damaged. Second, it makes removing a jammed holesaw blade as easy as popping the set-screw loose with an allen wrench.