These compact double squares come with either 4” or 6” blades. These double squares are indispensable for setting up machinery and performing a host of shop measuring and layout tasks. They fit nicely in the hand and slip in an apron pocket. They feature hardened, tempered steel blades with a satin-chrome finish that reduce glare and resists rust. The blade markings are precision laser-etched with quick-reading 4R markings with graduations in 1/8ths, 1/16ths, 1/32nds and 1/64ths.  The square heads are cast, precision-machined and have a baked-on black finish. All measuring surfaces are precision lapped. The heads lock down tight via a locking knob. Made to meet Federal Specifications in GGG-S-656E.  Guaranteed square +/- 0.002”.  Comes fitted in a storage case.

Specifications:

4”

• Head: 2.460” x 1.040” x 0.50”  
• Blade: 4” x 0.780’ x 0.085”

6”

• Head: 3.750” x 1.180” x 0.90”  
• Blade: 6” x 1” x 0.085”

WARNING: Cancer and Reproductive Harm -