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Marking 90 and 45-Degree Angles

0:40
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Speed Square basics broken Down. 4k video

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What happens here

To make a 90-degree cut, place the speed square's fence firmly against the edge of the board. Use a pencil to draw a straight line along the perpendicular edge of the square. For a 45-degree cut, use the angled side of the speed square in the same manner, aligning it with the edge of the board and marking the line.

Goal: Accurately mark perpendicular and mitered lines on a board.

Tools and materials

  • Pencil M.L. Gordon Company — Marking lines on the board
  • Speed Square — Marking 90-degree and 45-degree lines
  • Wooden Board — The surface on which to mark the cuts

What they say

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speed square is known for is the 90-degree angle of course a straight cut a straight cut right there you just put your your side up and boom they'll also have a built in 45 so with the same thing you want to make a 45 just straight along your board and now you've got a dedicated 45 but there's a lot more to these speed squares than just a 90 and a 45 we want to rip a board down let's say we want to take a board and we

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