Starrett 4 Double Square. If my memory hasn't failed me i think i paid around $40.00 for it then. By john tetreault sep 27, 2012. Given their guaranteed accuracy, these delightfully handy squares offer a versatile alternative to fixed steel squares.
The bevel blade is available, featuring an octagon angle 45 degree at.
I have a starrett 4 double square that i bought new around 10 years ago. Size 4 starrett graduated blade double square (1 each). Cast iron, number of pieces: I have a starrett 4 double square that i bought new around 10 years ago. Starrett 13a double square with hardened blade. With the fence resting in my palm, the thumb falls naturally onto the ample knurled knob. Blade allowing it to fit in tight places. This square is very popular with machinists, toolmakers, and patternmakers.