Hole saw diameters perfectly matched to the work performed by electricians and installers.
Ground teeth, vacuum hardened, allow for precise drilling and increase service life.
A special spring allows the material to be pulled out faster from the inner part of the hole saw.
Additional locking pins in the adapter allow drilling with large diameters without damaging the thread.
Bi-metal blade allows drilling holes in wood, plasterboards, steel and non-ferrous metals.