Some people have told me that the Lucas Distributor Key was included in their kits and I am sure it is true, However:
1. The "Distributor Key" is not included in the tool parts list for the Tiger. It is for the Alpine, which is probably why some mistakenly ended up in Tigers since both were prepped for delivery at Ryton.
2. The Lucas Key measures a points gap of .014 - .016; the feeler itself measures .015". Per the Tiger Workshop Manual the points gap for a Ford 260 (Mk 1 or Mk IA) is .015" and for the 289 (Mk II) it is .017". So it would work for a Mk I but not a Mk II.