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Marking Gauge

The marking gauge is one of the woodworking tools that is used by woodworkers and carpenters to mark lines on pieces of wood. The lines marked are parallel to a straight edge and .
There are four primary parts of the marking gauge; these are:
1. The Stem – The stem runs the full length of the marking gauge.
2. The Stock – The stock is the block that will rest against the side of the wood that you are trying to mark.
3. Spur – The spur has a point on one side that is used to mark or scratch into the piece of wood.
4. Thumb Screw – The thumb screw will lock all the parts of the marking gauge into position, and it also holds the side of the wood that you plan on marking with the marking gauge.

Once you have assembled all the parts of the marking gauge, you are going to also need  a ruler and a pencil.  You  measure the distance between the stock and the spur; this is also the distance that you are going to mark on to the wood. The distance can be adjusted by loosening the thumb screw, and then measuring the distance with the ruler. It is important that you measure from the point of the spur and never from the back edge of the spur where it meets the stem.

How to use the marking gauge

  • Measure the distance between the stock and the point of the spur using your ruler.
  • Tighten the thumb screw. (If you need to adjust the distance just tap the bottom or the top of the marking gauge to shorten or widen the distance that is between the stock and the spur. Tighten the thumb screw to prevent it from shifting.)
  • Firmly hold the marking gauge in one hand, and place it squarely against the side of the wood that you wish to mark.
  • Next you should measure the line across and down the length of the entire wood, and you should also do the same on the top of the wood.
  • Place the stock against the piece of wood and run the marking gauge down the wood.
  • You should then use your pencil to highlight the marked line. The line should be parallel to the edge of the wood.
  • You may need to use the marking gauge to go over the wood once or twice, in order to get the depth that you need.

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