Just trying to match a holesaw and arbor on the Screwfix site.
The arbor suggests maximum and minimum sizes of hole saw. The hole saw description is a bit more cryptic.
9.5mm shank for 14-30mm 11mm shank for 32-152 mmBoth include an M2 pilot drill.
79mm holes saw says "High quality, M3 bi-metal holesaw". I was OK until I saw the M3. What does that refer to?Anyway, buying an Erbauer hole saw and arbor should be fine. Just not very helpful if you already have an arbor from another manufacturer.
Just a random moan grumble chunter.
Dave R