One of the first tools many get when embarking on our journey into woodworking is a 12” (300mm) combination square. This American innovation is one of our toolbox’s most versatile marking and measuring devices. However, the relatively heavy cast iron and steel combi square is not a tool you carry with you as you move around in the shop; It is more of a sedentary tool to be picked up from the tool rack near the bench and put back on the rack when you finish the marking/measuring. If you (like me) appreciate a portable and smaller square, a loyal companion to accompany you and be as handy as hell, smaller options are also available. One of them – the double square – will be the subject of this blog entry.
A smaller 6” (150mm) version of the combi-square is trendy among woodworkers, but a cousin of the combination square – the double square – might be the best square to carry in your apron or tool belt pocket most of the time.
The double square (the one below is a new and high-quality tool by Benchmark tools) has a hardened steel blade and a portable cast iron head.