I'm looking at asking santa for a set of precision engineer/machinist squares for tool set-up, etc. Rockler has a 3 pc GROZ set (item 27237) on sale for $30 and free shipping. Woodcraft appears to have the same GROZ squares except in a 4 pc set (item 148042) for $45 with the $10 promo discount and free shipping. Not sure which is a better value. The Rockler kit set sizes are 2", 4", 6". For $15 Woodcraft adds a 3" square. I guess I need to know which sizes are the most commonly used for tool set-up and general shop use, if a 3" square is not going to have much use then the Rockler set would be a better deal.
Thanks