Shopping Cart

Your cart is empty.

Your cart is empty.

Benchmark Tools 106607 4” Woodworking Precision Double Square 1/8” and 1/16” Graduations Accurate to +/- 0.002 inch Over Length of Hardened Stainless Steel Blade

4.6 (5) Write Review
Free shipping on orders over $29.99

$27.99

$ 12 .99 $12.99

In Stock

About this item

  • These handy double squares are indispensable for setting up machinery and for performing a host of shop layout tasks.
  • They are manufactured in accordance with EEC Class 1 accuracy standards and are guaranteed to be square to within 0.002 (two 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, So, we had these squares made with the most commonly used 1/8th and 1/16th graduation marks on both sides.
  • Square heads are cast and then precision machined. Square head color is Square heads lock down tight via locking knob.
  • Specifications: Blade width: 0.728” +/- 0.01” ; Blade thickness: 0.078” +/- 0.008”; Blade groove: 0.86” wide and 0.03” deep; Graduations: Woodworking Grads (1/8, 1/16); Head thickness: 0.472”; +/- 0.02”; Head width: 0.084” +/- 0.02”; Head height: 2.36” +/- 0.02”


These handy double squares are indispensable for setting up machinery and for performing a host of shop layout tasks.
They are manufactured in accordance with EEC Class 1 accuracy standards and are guaranteed to be square to within 0.002 (two 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, So, we had these squares made with the most commonly used 1/8th and 1/16th graduation marks on both sides.
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.
Specifications:
Blade width: 0.728” +/- 0.01”
Blade thickness: 0.078” +/- 0.008”
Blade groove: 0.86” wide and 0.03” deep
Graduations: Woodworking Grads (1/8, 1/16)
Head thickness: 0.472”; +/- 0.02”
Head width: 0.084” +/- 0.02”
Head height: 2.36” +/- 0.02”


Jon Graulau
Reviewed in the United States on May 30, 2025
Excellent quality tool. I use it for making guitar nuts. Makes aligning the string slots easy!!
Daver
Reviewed in the United States on May 15, 2024
Fits in a pocket or loop in your work apron so it’s always handy. Fits into small areas for squareness checks or measurements. Precisely made for great accuracy.
Oscar Antonio Rocha Martinez
Reviewed in the United States on December 24, 2024
Buena calidad respecto al bajo precio.
Dan Gerous
Reviewed in the United States on January 9, 2024
It's the perfect alternative if you're not looking to drop the coin on a woodpeckers square or something more expensive. I reach for this little guy all the time and don't know why I didn't buy it sooner. It's an absolutely invaluable layout tool in my tiny shop.
J
Reviewed in the United States on March 30, 2023
The media could not be loaded.