How to build a rock cutting saw

Written by darby stevenson
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How to build a rock cutting saw
Next time try cutting the rock yourself with a simple circular saw modification. (Jupiterimages/Comstock/Getty Images)

Many different tools can be used to cut stone, from chisels to expensive professional rock cutters. If you are working on a small rock, stone or masonry cutting project at home, you may not need to rent a rock cutting saw to finish the job. The simplest way to build a rock cutting saw is simply to convert an existing circular saw. With the right blade, a circular saw is capable of cutting even the strongest granite.

Skill level:
Moderate

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Things you need

  • Circular saw
  • Diamond or abrasive circular saw blade

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Instructions

  1. 1

    Purchase an abrasive blade for rock cutting, or a diamond-tipped circular saw blade from your local hardware store.

  2. 2

    Push the blade lock button on the circular saw. This assists in changing the blade.

  3. 3

    Locate the blade changing tool (the "key") that came with your circular saw. It looks like a small wrench.

  4. 4

    Put the key on the bolt in the centre of the blade. Twist to the left to unscrew the bolt completely.

  5. 5

    Pull up the blade guard on the saw to expose the blade.

  6. 6

    Lift the blade up off of the bolt and, and pull out. Do not lose the nut and washer that held the blade to the centre bolt.

  7. 7

    Place the diamond or abrasive blade in the saw and on the centre bolt.

  8. 8

    Put the nut and washer on over the new blade, turn right to twist tight.

Tips and warnings

  • Cutting stone will make the saw blade hot, so hose down the rock with water before cutting, and take a break when the saw starts getting hot.
  • Wear a mask when cutting rock, inhaling the dust can be hazardous to your health.

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