For sale use of hole saws use the correct
rotation speed. The correct speed for each size is given in the
For longer saw life and lower operating costs, the following recommendation
need to be observed:
1.Use the correct arbor for the size saw to be used.
2.Use pin-type arbors for hole saws larger than Dia.32. When mounting,
Lift up the disc with the pins and then screw the arbor down into
the hole saw as far as it will go. Fit the drive pins into the pin
holes in the hole saw by turning the hole saw backwards. Push the
pins in .Check that they are securely locked.
3.Check regularly to make sure the drive pins are in the right
4.Check that the arbor shank is securely inserted in the chuck
on the drive unit. Tighten with chuck key.
5.Cutting oil should be used when sawing steel.
Do not use cutting oil when sawing cast iron. The cutting pressure
should, however, be high so that each tooth cuts deep.
Paraffin can be used when sawing aluminium.
6.Use the correct rotation speed! Too high or too low a speed will
decrease the life of the cutting edge.
7.If the hole saw vibrates during sawing, the teeth may became
damaged and break. The result is often a rough, imperfect hole.
8.Apply the hole saw perpendicular to the workpiece. If the hole
saw is titled, this will cause uneven loading and abnormal wear
on both the saw teeth and the grilling machine. Moreover, the dimensional
accuracy of the hole saw can be affected.
9.Clear away chips and slugs frequently in order to prevent overheating.