Things are looking up after a couple of phone calls to J&L customer services.

Got 3 at £10.67 which is not bad for a 3/4" HSS 4 flute on a reduced screw shank. Next day DHL for £4.95

The mill came with a screw shank collet chuck and I have become strangely attached to this particular cutter for some bizarre reason that I can't quite seem to fathom.

I usually throw them away when they become blunt. Hopefully I will remember to turn the speed down a couple of notches before resuming the cut :whistling: