| • |
The pilot drill must extend beyond the edge of the hole saw teeth
by 1/8". |
| • |
Always secure the material to be cut. If not, the turning action
of the hole saw will cause the workpiece to spin or slip. |
| • |
Start the hole saw square to the workpiece surface with steady
feed pressure. Unbalanced tooth engagement will result in erratic
hole saw action and could cause tooth strippage. |
| • |
Follow the recommended standard hole
saw operating speeds. |
| • |
Hole saws should be worked in and out to help clear chips when
working at the upper ranges of the hole saw's capacity. |
| • |
Whenever possible, use a cutting oil (except with cast iron or
wood) to help clear chips and lubricate the blade for longer life. |
| • |
Occasionally check the mandrel's drive pins to prevent them from
vibrating out of the hole saw's drive pin holes. |
| • |
Always wear eye protection. |
