The new 550X e 551X series equipped with the new XTREME FAST and PUSH&LOCK systems were designed to ensure maximum lifetime and provide outstanding cutting performance on all materials.
PUSH&LOCK - One PUSH&LOCK arbor makes hole saw changes from one series or diameter to another completely hassle-free.
XTREME FAST - Adapter to make FASTX4 hole saws compatible with the new PUSH&LOCK system.