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Stesso

Measuring Depth of Slots or Dadoes

0:27
1:05
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At 0:27 in

Combination square uses

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What happens here

Demonstrate using the combination square's ruler as a depth gauge. The user slides the ruler completely out of the square head. For measuring the depth of a dado or slot in a wooden block, the user rests the square head on the surface of the block, extends the ruler into the slot until it touches the bottom, and then locks it in place. The measurement can then be read directly from the ruler.

Goal: Accurately measure the depth of a slot or dado

Tools and materials

  • Combination Square Pittsburgh — To measure depth
  • Wooden Block with Slot — The object whose depth is being measured

What they say

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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 down. And just slide it along the edge of your board. You can even slide your ruler out and just use it by itself. But, what if you need to measure the depth? Put your head on the piece, push your ruler down, lock it in place. That depth is the same across this whole board. And that same trick works in reverse when you want to set the height of your saw. And now we know that the height of our saw blade is an inch. You can also use your combination square to

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