This nine piece set includes three vinyl shims (two 0.5mm and one 1mm thick), 2mm, 4mm, 8mm and 16mm thick aluminium blocks (a second 16mm thick block is included to simplify 32mm spacing) and a 25mm x 50mm x 75mm steel block. The shims and aluminium blocks are accurate to within 0.05mm and are 50mm long; the steel block is accurate to 0.018mm. Combined, the set allows stacking from 0.5mm to 123mm in 0.5mm increments. Supplied in a hard-shell plastic case with dividers to protect the pieces.
Made in Canada.