They are manufactured in accordance with EEC Class 1 accuracy standards and are guaranteed to be square to within 0.0015 (one and a half thousandths of an inch) over the length of each blade. They have hardened and tempered no-glare satin chrome stainless steel blades. Blade marking are precision photo etched and then black filled for easy readability.
Blades have quick reading graduation markings with 1/8th and 1/16th on both sides. Traditionally, the most common graduation markings used by woodworkers are 4R, or 1/8ths and 1/16ths on one side and 1/32nds and 1/64ths on the reverse. The fact is most woodworkers never use the finer 1/32nd and 1/64th markings as they are hard to read, too precise for most tasks, and just plain confusing, e.g., just what does 51/64th or 19/32nds really mean? Square heads are cast and then precision machined.
Square head color is Square heads lock down tight via locking knob. Squares come in a cardboard box. Available in with either a 4” or 6” blade.
Replacement screws available.,They are manufactured in accordance with EEC Class 1 accuracy standards and are guaranteed to be