I don’t like waste, particularly because one aerator’s tine doesn’t fit another aerator’s mounting block.
In particular a Toro 648 pro core has a block suitable for 19mm tine mounts, whilst Vertidrains have block suitable for 18mm tine mounts.
If you verti drain with a 8mm tine 250-300mm long you end up throwing away 100-125mm of that tine. But with an Adaptor from Sports Metals you then take that 100-125mm 8mm tine and pop it in you pedestrian greens aerator with the 19 mount.
Sizes are infinite, from a 12mm sleeve for a 6.3mm/8mm/9.52mm or 10mm tine 18mm adaptor again taking the above sizes plus 12mm and 12.7mm tine with a 19mm adaptor doing the same as the 18mm adaptor
Anything is possible including re-drilling you old tine mounting heads and making a bespoke adaptor to fit. At Dartmouth Golf Club with drilled out the 24mm mounting block as it was a sloppy fit. Drilled it to 26mm and made a 1.0mm sleeve for a 24mm tine, result, all the heave action was good as new.
Tine sleeves range from 8mm body 5mm mount
Tine adaptors 12.7mm body 5mm mount
Sizes really are limitless so please enquire