How To Assemble & Use Quick-Hitch Arbor To Hole Saw

You need an Arbor & Hole saw. The same Arbor can then be used for several different sizes of Hole Saw.

This type of kit comes with no instructions not even a diagram so I've done this little video.
You don't need to dismantle the Arbor. Erbauer Bought from B&Q. This Uses Arbor size 'B' you need to buy matching size B Hole Saws.

Arbauer SDS Arbor (L)150mm (Dia)40mm  diy.com
Once you've fitted it once you'll never forget how to do it.