Hi Peter. The fit between the 3 mm pin and the steel rulers seems very very tight. I had to remove 1 with pliers. I did encounter chip out. I will post some pictures tomorrow. I am probably doing something wrong:-)
I have had a long conversation with the senior engineer at Axminster and I now understand why this is happening.
The PGS has been designed with very tight tolerances and they are now having the 3 mm Pins ground to improve accuracy.
The 20 mm Guide Block (which has three 3 mm holes for the Pins) is anodised and an allowance has to be made for the amount of decrease in diameter of the holes caused by anodising.
The 3 mm holes in the Parf Sticks are deliberately made as close as possible to the nominal 3 mm of the drill and Pins.
The net result is that there is a chance that the 3 mm Pins may be quite tight in both the 20 mm Guide Block and the Parf Sticks when everything is brand new. If this is the case then use a twisting motion, keeping the 3 mm Pin in line with the hole, and take it a little at a time. Do not use a hammer or any other "impact" tool.
This should then leave you with a PGS that is as accurate as it is possible to have.
The 3 mm Pins are always going to be tight when you try to insert them into a hole in an MDF top made with a 3 mm drill. You do not need to bury the Pin up to its hilt and so just use a twisting motion and get it at least 6 mm in and that will ensure good registration for the Parf Stick or 20 mm Guide Block.
The fit of the Veritas small Parf Dogs in the 20 mm Guide Block is also a close tolerance. If you are having any difficulty try and ensure that the Parf Dog is inserted evenly all round rather than at a slight angle.
If anyone is still concerned then rather than delaying matters by reporting it here do please go direct to Axminster Customer Services (firstname.lastname@example.org
) who will respond very quickly. If you have any concerns with that process then please PM me.