Infinitely adjustable diameter from 30 - 60 mm - for impossible drill hole sizes.
This special boring bit has one fixed cutting edge and it is sold together with: - one adjustable cutting edge (already mounted) for boring holes with diameter from 30 to 45 mm; - one adjustable cutting edge for boring holes with diameter from 45 to 60 mm. It is very easy to adjust thanks to the millimetric scale marked on the cutting edge. Complete with its allen key.
