Prop puller

First off a very merry Christmas to all the forum, lets hope 2013 gives us all tight lines!
Some time ago there was a post about making a puller to get the prop off the shaft, I copies it out at the time and filed it away, I am sorry but can't remember who posted it the first time but big thanks to him, I have had a bit of time on my hands lately and made myself one, boy did it do the trick, the prop was off the shaft within 5 minutes from start to finish, I have attached a photo of the gadget, well worth the trouble  and very little expence making it. big thanks again to the original poster.
it is made up of a metal square, with a hole in each corner, (60mm between the hole centres) 4  x12mm threaded rods (I cut mine to 135mm long) and another metal square that is split in half and has a 30mm hole cut and filed smooth in it, this collar goes to the for'd end of the prop whilst the 4 legs pass through the prop blades and are then put through the holes in the square, a 12mm nut is attached to each one and slowly each nut is turned which forces the plate against the end of the shaft ( I glued a small bit of thick rubber on it to save the end of the shaft) and in time the prop will pop off the keyway, saves banging the hell out of it with various drifts of timber.
all the best for the season
Kerry