CONSTRUCTION SQUARE: This Johnson L-Square is intended to make calculating angles and marking straight cuts simple and accurate. It is a tool that is operated by hand. PREMIUM DESIGN: This angle finder protractor has a Structo-Cast handle that is both strong and lightweight; and a heavy-duty blade that is constructed of stainless steel; so there is no rust or corrosion to worry about. READABILITY: This measuring tool features graduations in 1/8"; mm; and cm increments that are permanently etched in black for visibility. Hence; this tool is a favorite of woodworkers or finish carpenters. APPLICATIONS: This angle ruler helps to examine and mark internal and external right angles; as well as 45° angles; for framing; stair construction; shed construction; etc. It is useful for checking angles on bench saws and other cutting machines. PRODUCT SPECIFICATIONS: This 8’’ carpenter square measures ‎0.63 × 5.38 × 12 inches. The scale has a silver finish; while the handle is in black.