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Starrett 12'' Combination Square, with Square Head

Item #
52407
Rating:
100% of 100
(40)

Laroy Starrett invented the combination square in 1877 and it has become a basic tool for every craftsman and builder. The C11H series has a cast iron head with a handy spirit level and a hardened scriber. The blade is machine divided, hardened and tempered with a reversible lock bolt that allows the blade to be turned over or end-for-end without removing the lock bolt or nut. This assures true alignment of the blade and head.

(1) Starrett 12'' Combination Square, with Square Head
More Information
Brand Starrett
Manufacturer Part Number C11H-12-4R
Weight 1.2000
Length 12"
Style Square
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5.0 / 5.0
40 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
38
2
0
0
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Accurate
I've used big box store combination squares most of my life. I should have invested in this quality tool a long time ago.
February 19, 2020
Purchased
 3 months ago
Woodworking Experience:
Intermediate
Very precisely machined.
January 26, 2020
Purchased
 3 months ago
Woodworking Experience:
Intermediate
Great Square
Super clear to read. Tight feel. Measure with confidence. Nicest 64th graduations I've ever used.
December 30, 2019
Purchased
 3 months ago
Woodworking Experience:
Advanced
very accurate
December 28, 2019
Purchased
 3 months ago
Starrett 12" Combination Square
High quality, accurate, easy to read scales.
December 27, 2019
Purchased
 3 months ago
Woodworking Experience:
Intermediate
Great combo square
Have used this pretty much every way you can use one and it was perfect. Good feel, moves easy. Got to get the 6in to go along with it. Go buy it!!!!
December 15, 2019
Purchased
 4 months ago
Woodworking Experience:
Intermediate
What an upgrade
The Starrett was expensive but well with the money. After using for a couple weeks I threw away my other squares. The accuracy is unparalleled
December 10, 2019
Purchased
 9 months ago
Woodworking Experience:
Intermediate
High quality and accurate. Everything I expected from a Starrett.
November 3, 2019
Purchased
 5 months ago
Woodworking Experience:
Advanced
Accuracy
This is a very accurate combination square. You can have confidence it check and mark, at 90 and 45 degrees with great accuracy.
October 3, 2019
Purchased
 1 year ago
Woodworking Experience:
Intermediate
It's a Starrett
It's a Starrett. What's not to like besides the price. Had a Chinese made one that was not quite square. No fixing that in a combination square.
June 26, 2019
Purchased
 1 year ago
Woodworking Experience:
Intermediate
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Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 3 questions Browse 3 questions and 31 answers
Why did you choose this?
Rockler Store
Needed a quality square
MERTON B on Mar 26, 2020
It's a quality tool.
ray t on Nov 27, 2019
Needed a quality square
MERTON B on Mar 26, 2020
high quality and accuracy
Don W on Dec 6, 2019
It's a quality tool.
ray t on Nov 27, 2019
Best available
James W on Nov 22, 2019
Reputation.
Timothy E on Nov 20, 2019
Recommeded - very high quality
Per B on Jul 29, 2019
reviews state it gives consistent results in squaring
Kim K on Jul 4, 2019
Wanted a more accurate combination square, Starrett has a good reputation, and Rockler had it on sale.
David R on Jun 3, 2019
quality and reputation.
Brian M on Mar 22, 2019
Quality
Cynthia M on Nov 10, 2018
Recommended by a sales person at your Cambridge MA store.
Steve W on Jul 2, 2018
Accuracy. Reviews on this product are excellent
Zach on Jun 15, 2018
High quality, precision, accuracy
Tom G on Feb 28, 2018
Item recommended by North Bennett Street School
David H on Jan 1, 2018
Price+free shipping
Rick F on Dec 20, 2017
Most accurate square available.
Larry G on Dec 12, 2017
Quality, accuracy & long lasting
Jordan L on Nov 23, 2017
replace the one my son took and won't give back
Michael S on Aug 5, 2017
a quality product from a reliable/dependable company with an outstanding reputation.
Douglas O on May 19, 2017
Read about Starrett quality and accuracy from customer reviews here and elsewhere.
John F on Mar 7, 2017
Like they say, if you want to do best work possible! You have to work with the best tools!
Robert S on Mar 7, 2017
Quality
Pamela E on Nov 29, 2016
Silver wedding anniversary.<br />Also, my husband wanted it.
GREG T on Jul 29, 2016
Want accurate combination sq. Recommended by class instructor
Paul S on Nov 17, 2015
The best- accuracy and durability
Michael S on Nov 9, 2015
Glad I ordered this one, just the ticket
Jon C on Aug 31, 2015
This is a gift for a professional woodworker.
Regina F on Jun 21, 2015
high quality and accuracy
Don W on Dec 6, 2019
Best available
James W on Nov 22, 2019
does the center head come with this model?
Scott S on Feb 4, 2016
BEST ANSWER: No it does not. It is a fine instrument.
Is very accurate for measuring the inside and outside of a box for square. Some squares I have looked up say only it’s outside edge is guaranteed to be square but I’d like something that has more than one perfect 90 degrees? Thank you
Richard W on Mar 8, 2020
BEST ANSWER: You will be hard-pressed to find a more accurate square for woodworking purposes - both inside and outside of the tool's rule. "Perfect 90 degrees" and "guaranteed square" are relative to the tolerance you are expecting. You may find this in-depth bulletin from Starrett useful: https://www.starrett.com/docs/educational/tools-rules---bulletin-1211.pdf
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