Sale Lee Valley Starrett Cast-Iron Combination Squares

A versatile, classic design, Starrett’s standard combination squares are useful for joint layout or machine set-up and as depth, height or marking gauges. They have machined cast-iron heads with a black wrinkle finish and reversible polished steel rules with photo-engraved scales.

Except for the 4″ size, each comes with a steel scribing pin and a built-in level vial for determining level or plumb. The 4″, 6″ and 150mm models are square to within ±0.001″ over the full rule length; 12″ and 300mm sizes are square to within ±0.002″.

Imperial rules are graduated in the 4R style (with increments in 8ths, 16ths, 32nds and 64ths); metric rules are graduated in millimetres and half-millimetres on both faces.

The 4″ rule is 1/16″ thick by 5/8″ wide; the 6″ and 150mm rules are 0.080″ thick by 3/4″/19mm wide; the 12″ and 300mm rules are 0.090″ thick by 1″/25mm wide. Rules are straight and parallel within 0.001″ per foot.

The four-piece set includes the cast 12″ square/miter head and rule, a non-reversible bevel protractor with a level vial and a cast center-finding head, all in a fitted foam-lined hardshell case. The protractor head and center-finding head are also offered separately.