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Stesso

Marking 90 and 45-degree Angles

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Combination square uses

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What happens here

Utilize the combination square to mark precise 90-degree and 45-degree angles on a flat board. The user positions the square against the edge of the board and uses a pencil to draw lines along the straight edge of the ruler for a 90-degree angle, then repositions it to mark a 45-degree angle using the miter head.

Goal: Layout precise angular lines on a workpiece

Tools and materials

  • Board — The surface on which to mark angles
  • Combination Square Pittsburgh — To mark 90 and 45-degree angles
  • Pencil — To draw the lines

What they say

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You're probably only using half your combination square. Here's what else I can do. Let's get after it. Obviously, you can check inside corners and outside corners for square. You can also mark 90s and 45s. But, how do you know that your square is actually square? Draw a line, flip your square, and draw another line. If these lines don't match up, something's off. Now, say that you need to line an inch in from the edge of your board. Set your measurement and lock it

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