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Products > Precision > Layout     All iGaging products

Double Square Set, 4" and 6" 4R

Double Square Set, 4" and 6" 4R
Part Number: 5869
Weight: 1.18 lb

Price: $25.49

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  • 4" 4R blade with 2.5" base
  • 6" 4R blade with 4" base
  • 4R Graduation – 8ths, 16ths, 32nds, 64ths
  • Scale accuracy: 0.001"
  • Squareness: 0.0015"


Pair of heavy duty hardened, precision ground double squares, 4" and 6". Blades are graduated in 8ths, 16th, 321nds, and 64ths. Blades are satin chrome finished to reduce glare and rust, and are easy to read.

Made to US standards for accuracy and squareness with scale accuracy of 0.001" and squareness of 0.0015"

The 6" square has a bubble level and the squares may be locked at any position along the blade.

Squares come in a storage case with foam insert.

Chris' Tips

Chris Chris' Tips
When using a precision rule for very close accuracy, the eye can read better by measuring between two lines than from the end of the rule to a line.  

Here is how to use a steel rule.


"Double Square Set 1/8th inch measurements
"Double Square Set 1/16th inch measurements
"Double Square Set 1/32nd inch measurements
"Double Square Set 1/64th inch measurements


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