ITEM NAME:12 Combination Protractor Tri- Square Angle Ruler Machinist Measuring Tools Nbn Descriptio n Material: Stainless steel Color: black silver Size: 300MM Product list: Stainless Steel Combination Square *1 Feature: Double sided ruler in English and Metric measurements graduated in 8ths, 16ths and 1mm increments. Slotted and etched 12-Inch stainless steel ruler for easy reading. Depth, height and marking gauge. Center, square and protractor heads. Spirit level and scribe. Stainless steel finished ruler with Clearly and accurately calibration. A great combination set for professionals and hobbyists. Whatever the ending's perfect or not, you can't disappear from my world Combination Protractor Tri- Square Angle Ruler Machinist Measuring Tools NEW.Center, square and protractor heads. Product list: Stainless Steel Combination Square 1. A great combination set for professionals and hobbyists. We'd like to settle any problem in a friendly manner.