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Granite Straight Edges, Parallels & Tri-Squares

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Granite straight edges, parallels, and tri-squares are solid tools used for layout and positioning. Granite straight edges are non-graduated tools that have a single long and narrow face with a flat finish. They are generally 2 or 3 inches wide and often have smooth holes for lifting. Granite parallels are used to set up work on surface plates and machine tables. They are also used to elevate work above the surface of a plate for quick and easy inspection. Granite tri-squares have three finished sides and are used to check for 90° squareness. These granite tools are durable, corrosion-resistant, and tolerate temperature fluctuations and resist thermal expansion.
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Grade AA Laboratory Granite Tri-Squares & Cubes

Grade AA Laboratory Granite Tri-Squares & Cubes
Grade AA (Laboratory Grade) granite tri-squares have three sides and are used to check the X, Y, Z axes on CNC machine tools and coordinate measuring machines (CMM). When used in a horizontal position, they can check the X and Y axes for 90° squareness. When used in a vertical position, they can be traced along the edge to check the perpendicularity of the Z axis. They are also used for checking general squareness and straightness. They are durable, corrosion-resistant, and tolerate temperature fluctuations. These grade AA tri-squares have the highest degree of accuracy and are often used in calibration laboratories and high-precision metrology and inspection labs.

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.