11H Series Combination Squares, 2 1/2" x 6", 1/64 in @ 1 in, 64ths, Steel/IronMulti-purpose uses include: 45 miter, depth gage, height gage, marking or scribing gage, a level, a plumb, and a precision ruleHardened, machine divided graduations, bladeReversible lock bolt allows blade to be turned over or end-for-end, without