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Starrett Combination Square


Starrett Combination Square 461521
Starrett Combination Square 461521Starrett Combination Square Set in CaseStarrett #4R Rule GraduationsStarrett #36 Metric & Inch Graduations
Starrett Combination Square

Price : Starting at $84.99

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Detailed Description

Starrett Combination SquareSee our Combination Square Instructional Video.

The Starrett combination square is one of the most versatile and useful marking and measuring tools in the woodworking shop. Carefully machined and manufactured in the USA since 1878, Starrett squares are known for their accuracy, reliability, precision and long service life. Dead accurate like a high quality engineer's square, and far more versatile and precise than a try square, a Starrett combination square has a head made from durable cast iron or hardened steel. The rules (blades) are hardened, tempered steel with photo-engraved graduations that will never wear out and have a non-glare satin chrome finish. Often copied, but rarely duplicated, a Starrett combination square will be a tool you will rely on year after year for accurate joint layout, checking your work for perfect square & 45 degree angles, and for accurately setting up your woodworking machines.

Starrett Combination Square Heads

The standard combination square head has a 90° face and a 45° face. It is used for check square or 45° on everything from table saw blades to jointed edges of boards. It includes a built-in spirit level and a hardened steel steel scribing pin. The center head is used to find the center of round workpieces (dowels, small table tops, etc.) The protractor head is used to precisely measure angles.

All three heads come in cast iron with a black wrinkle finish. The standard head and center head are also available in hardened steel with a glossy black finish. Hardened steel heads are typically used by metal workers.

The heart of the combination square is the locking bolt. All three types head use Starrett's precise, reversible and reliable locking bolt. It locks the blade in place with just a few turns and keeps the blade square without slipping through many years of service.

Starrett Combination Square Blades

All of our Starrett combination squares have hardened steel blades with a satin chrome finish. The satin chrome finish reduces glare and makes the rule easier to read.

Our inch graduated Starrett combination squares use the #4R inch graduation pattern on their blades. One side of the blade has quick reading 64ths & 32nds. The other side of the blade has 16ths and 8ths. The blade can be mounted in the square in all four positions so that your preferred scale is in the best position.

Our metric-inch graduated Starrett combination squares use the #36 graduation pattern. They have 1/2mm and 32nds of an inch on one side of the blade and mm and 64ths of an inch on the other side.

Combination Square Sets

Standard combination squares come with the blade (rule) and the standard square head. Combination square sets add the center head and protractor head.

  Square Starrett # Price  
4" Combination Square
Cast Iron Head w/ black wrinkle finish
C11H-4-4R
6" Combination Square
Cast Iron Head w/ black wrinkle finish
C11H-6-4R
12" Combination Square
Cast Iron Head w/ black wrinkle finish
C11H-12-4R
12" Combination Square Set
Cast Iron Head w/ black wrinkle finish
Includes fitted plastic case
C435-12-4R
12" Combination Square Set
Hardened Steel Head w/ gloss black finish
Includes fitted plastic case
C434-12-4R
150mm - 5-3/4" Combination Square
Cast Iron Head w/ black wrinkle finish
C11MH-150
300mm - 11-3/4" Combination Square Set
Cast Iron Head w/ black wrinkle finish
Includes fitted plastic case
C435M-300
300mm - 11-3/4" Combination Square Set
Hardened Steel Head w/ gloss black finish
Includes fitted plastic case
C434M-300
300mm - 11-3/4" Combination Square
Cast Iron Head w/ black wrinkle finish
C11MH-300
Please Note: While the square head and center head included with these sets are hardened steel, the protractor head is cast iron.

Additional Information

Starrett Combination Square: Introduction, Assembly & Applications

Jeffrey Fleisher's Starrett Combination Square Tool Review.




Starrett Combination Square Instructional Video

Notice to residents of California: Please read our Proposition 65 warning.

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