1-2-3 Blocks - Layout Tool

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A 1-2-3 block is a layout tool that can be used for both metal and woodworking. As the name suggests, the block's thickness is 1", the width is 2", and the length is 3". A quick an d accurate reference to those sizes in a convenient package for all sorts of precision layout work. The block is hardened steel, and the surfaces are ground to an accuracy of 0.0001" per inch. Comes in a pack of 2 FEATURESAccurate to 0.0001" per inchMeasure 1" x 2" x 3" Show more