One-Piece DIAMOND™ Hole Saws
1. Ensure that the work piece is supported to avoid flexing of the work piece during cutting.
This will help prevent cracking or breaking of the material.
2. Verify you are using the correct speed for the size being used. One-piece DIAMOND Hole
Saws require high RPM’s. Longest life is obtained by using the correct RPM. If your drill
does not provide the required RPM then run the drill as fast as possible. If you are making
holes regularly with DIAMOND Hole Saws, it is recommended that you purchase a drill at
the proper speeds.
3. If possible, wet the work piece with water in the location you plan to cut. Water will extend
the life of the tool. If drilling without water, stop regularly to keep the saw from overheating.
4. Start the drill at a 45o angle with respect to the work piece to start the hole. Once the drill is
steady and the saw has begun to break through the surface of the material, slowly move the
drill so it is perpendicular to the work piece.
5. DO NOT use excessive force for cutting. This will strip the diamond grit from the edge
greatly reducing the life of the saw.
6. Orbit the back of the drill in a small circular fashion while applying LIGHT PRESSURE (15-
20 lbs of force; See Figure 1 Below).
Figure 1
7. If multiple holes are to be drilled, you may leave the slug in the saw. The slugs will pop
themselves out on the next cut. Remove the slug after the last hole is drilled to keep it from
drying in the saw making it more difficult to remove.
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