ITEM NAME:12''Combination Square Set Welding Gauge Square Protractor Center Head Ruler Description: Set Includes: 12-Inch Stainless Steel Rule, Protractor Head, Square Head, Center Head, Scriber, and Storage Case. Ruler Graduations: 1/16 in. and 1/8 in, up to 12in. Direct Reading Double 180 Degree Protractor Scale Hardened Cast Iron Steel Heads with Reversible Lock Bolts Brass adjustment screws. Specification: Material: Stainless Steel+ Aluminum Alloy Metric ruler graduations in millimeters: up to 30cm Ruler Graduations: 1/16 in. and 1/8 in, up to 12in Color: Metallic Package Includes: 1 Piece Combination Square Set Note: Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above. SKU: DMO0015821161002681.Direct Reading Double 180 Degree Protractor Scale. Ruler Graduations: 1/16 in. and 1/8 in, up to 12in. and 1/8 in, up to 12in. Hardened Cast Iron Steel Heads with Reversible Lock Bolts. 1 Piece Combination Square Set.