The Ultimate in Accuracy

• Made of fine quality, fully ground carbon steel
• Marks a perfect 90-degree angle and is a quick check for 90 degrees
• Used for marking metal, wood, and plastic
• Use to set up table saws, disk belt sanders and other power tools
• Set of 3; 3-inch, 4-inch and 5-inch blades

The design includes a base and blade set at precise 90-degree angle. There may be a small notch at the base to prevent accumulations of debris that could throw off the measurements.

Includes three squares in the following sizes: 3-inch blade with 1-7/8 inch beam; 4-inch blade with 2-1/2 inch beam; and 5-inch blade with 3-inch beam.