The RUKO bi-metal hole saws are suitable for use in hand and pillar drilling machines. For pillar drilling machines, please use only manual feed.

With easily machinable materials, the variable tooth design ensures a more consistent cut and reduced effort. The lower vibration and heat generation during cutting result in up to three times longer tool life. They are suitable for unalloyed steel (up to 700 N/mm² strength), non-ferrous and light metals, plastics, gypsum, lightweight construction, fiber, plywood panels, and wood processing.