12 inches combination square with cast zinc head, etched stainless steel blade, bubble level and self-aligning draw bolt

inches alignment blade lock bubble carpenter tools carpentry cast zinc head check level clipping path close combination square common measurements copy space craft dimension equipment etched hardened scriber heavy duty highvisibility markings isolated background white tool measure measurement metal meter people precision quick adjustments rational dimensions ruler scale secure hold selfaligning draw bolt stainless steel woodwork woodworking working surfaces workplace self-aligning marking layout tool