I've bought plenty of Benchdog woodworking tools over the years, and the Benchdog MK2 T-Square is one of the few that genuinely impressed me from the first use.
It's beautifully made, feels solid in the hand, and, most importantly, it's spot on. Once it's against the edge of the workpiece, it stays put, making accurate marking quick and easy. The engraved markings are clear, and the marking slots are a nice touch that I now use more than I expected especially when marking lines for my track saw.
What really surprised me was how well it works with the Benchdog Shelf Pin Drill Guide. Laying out and drilling shelf pin holes is incredibly quick—just mark your line, position the drill guide, and get on with it. It's a much faster and simpler way of working than setting up a router and shelf pin jig, especially if you're only making one or two cabinets.
This now hangs on a wall in my workshop along with many other Benchdog tools.