iGaging 12" 4 Piece Combination Square with Center and Protractor Heads with E/M Graduations in 1/8", 1/16", .5mm and mm.

These precision 4-piece combination squares are perfect for project/part layout, machine setup, determining level/plumb, or as a depth, height, or marking gauge. This type of square is widely used by metal and woodworkers alike. They are manufactured in accordance with the derived tolerances from FEDERAL SPECIFICATION NO. GGG-S-656c and guaranteed to be square to within 0.005" (five thousandths of an inch) over the length of the 12" blade.

Blade: Has a hardened and tempered no-glare satin chrome-finished steel blade. Blade markings are precision laser-etched for easy readability. Graduations are in 1/64ths, 1/32nds, .5mm and mms. The blade measures 12” x 1” x 0.080”.

Square head: Precision machined and lapped cast iron head with a black baked-on finish contains an integrated spirit level and hardened steel scribe. The size is 5” x 3-5/8” x ¾”.

Protractor head: Non-reversable head (can be used on one side only) and rotates 90 degrees in both directions.  Has 2 locking screws and an integrated level.  Size is 7” x 3-1/4” x 7/8”

Center head: Size is 3-3/4” x 3-1/4” x ¾”.

Complete set comes packaged in a plastic case with foam cutouts.