Starrett 13A Double Square With Hardened Blade

by Starrett

Product Description

From the Manufacturer

A popular square with machinists, toolmakers, and patternmakers. The sliding blade is adjustable, making it more practical for a wider variety of uses than a common square with fixed blade.

Product Description

Starrett hardened steel squares are recommended when accuracy is required. Beams and chrome plated blades are hardened, ground and lapped to insure parallelism and straightness. Beam is grooved at inner corner for clearance of burr or dirt. Faces of the head are ground square. Tempered steel, machine divided blades in 1/8", 1/6", 1/6", 1/32" and 1/64" divisions.

Product Details

• Product Dimensions: 1 x 0.7 x 4.3 inches
• Shipping Weight: 1.6 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B0002FUM2Y
• California residents: Click here for Proposition 65 warning.
• Item model number: 13A
• Average Customer Review: 5.0 out of 5 stars  See all reviews (16 customer reviews)
• Amazon Best Sellers Rank: #9,174 in Home Improvement (See Top 100 in Home Improvement)
  • #13 in Home Improvement > Power & Hand Tools > Measuring & Layout Tools > Carpentry Squares

Customer Reviews

Most Helpful Customer Reviews

12 of 12 people found the following review helpful:

5.0 out of 5 stars double square vs combo square, May 15, 2007

By 

Conifer (Los Altos Hills, CA) - See all my reviews

This review is from: Starrett 13A Double Square With Hardened Blade (Tools & Home Improvement)

I own both and use the double square 'twice' as much as the combo--just feels better in your hand, and it is practically indestructible if dropped. Changing the blade orientation requires you pushing up on the tightening mechanism and holding as you insert the blade groove. It would be nice to have a 1/8th--1/16th marking on both sides. I rarely have a need for the 1/32-64th markings.

9 of 9 people found the following review helpful:

5.0 out of 5 stars Love this Square, January 10, 2008

By 

F. Carrino - See all my reviews
(REAL NAME)   

This review is from: Starrett 13A Double Square With Hardened Blade (Tools & Home Improvement)

I spent years building projects using the standard "sort-a-square" you find at the hardware store. I always thought the Starret's were ridiculously priced and I refused to buy one. Needless to say many a project was almost perfect. Finally broke down and bought my first Starret Comb Square a few years ago and ever since it is the first layout tool I reach for!

I have the 12" combo square and this 4" Double Square. I love how accurate these squares are! They may seem on the pricey side but they are the most accurate and most used tools in my shop! The 4" never leaves my side.

7 of 7 people found the following review helpful:

5.0 out of 5 stars Excellent layout tool, February 22, 2008

By 

E. Rogers "L30sailor" (Waterbury, CT United States) - See all my reviews
(REAL NAME)   

This review is from: Starrett 13A Double Square With Hardened Blade (Tools & Home Improvement)

I am a professional cabinetmaker and I would highly recommend this tool for anyone that needs accurate layout and checking machines for square. I have had other squares that were adequate, but this tool is the best there is.