Precision Double Square 4R Graduations (4 Double Square)

Indispensable for setting up machinery and performing a host of shop layout tasks, these handy double squares are manufactured in accordance with EEC Class 1 accuracy standards. Guaranteed to be square to within 0.002 (two thousandths of an inch) over the length of each blade, they feature hardened and tempered no-glare satin chrome stainless steel blades. The blade markings are precision photo-etched and then black-filled for easy readability, with quick-reading 4R markings (1/64ths and 1/32nds on one side, and 1/8ths and 1/16ths on the reverse).

The square heads are cast and precision-machined, with a cobalt blue color. These square heads lock down tight via a locking knob, ensuring a secure and precise fit. The squares are packaged in a cardboard box and are available in either a 4-inch or 6-inch blade length. Spare blades and locking screws are also available as accessories.

Specifications: - Blade width: 0.728 inch +/- 0.01 inch - Blade thickness: 0.078 inch +/- 0.008 inch - Blade groove: 0.86 inch wide and 0.03 inch deep - Graduations: Quick-reading 4R (1/8, 1/16, 1/32, 1/64) - Head thickness: 0.472 inch +/- 0.02 inch - Head width: 0.084 inch +/- 0.02 inch - Head height: 2.36 inch +/- 0.02 inch

These precise and reliable double squares are essential tools for a wide range of shop layout and machinery setup tasks. Their exceptional accuracy, durable construction, and user-friendly features make them an indispensable addition to any workshop or toolbox.

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