Combination square by Catherine Wright

Invention

1012283_2 — 2024-09-12 12:25:59 UTC

Laroy S. Starrett invented the combination square in 1877.

Components and Accessories

1012283_2 — 2024-09-12 12:37:37 UTC

the primary components are a removable flat metal ruler with a groove running down the center and a square head, comprising a shoulder at 45 degrees and an anvil at 90 degrees, which you can adjust to slide down the ruler and lock at the right measurement. the accessories are a spirit level, which is used to confirm that a surface is flat, and some come with a scriber to mark measurements.

Primary Uses

1012283_2 — 2024-09-12 12:38:21 UTC

People measure material for accuracy, mark lines, and angles with a combination square.

Video

1012283_2 — 2024-09-12 12:38:33 UTC

I chose this video because it has everything you could need to know about a combination square and it shows examples of it in use.

Application in Carpentry

1012283_2 — 2024-09-12 12:38:46 UTC

Some ways you can use a combination square are checking for square angles, measure and mark 45 degree angles, determine the center of round objects, use as a level, use as a ruler, and check to insure flat surfaces. Becoming proficient with a combination square can help you with all of these uses, and insure accuracy with them.