Sorry but I cant resist.The screw is called “Robertson” and they are usually not used in the US because its a Canadian invention. I was very pleased to see these on my Pantera as they are great to work with.You will also notice that the screwdriver are coloured for the size which makes it easier to grab the right tool.A number 2 is red while the bigger number three screwdriver has a black handle.The nice thing about Robertson screws is that theyre strong and because of the tapered head they stay on the screwdriver in almost all positions which is a great help in those hard to reach places.Thanks for putting up with my proud rambling :-DPractice Angling CPRCatchPictureRelease2010 PIV 200SHO