04-18-2016, 07:04 AM
#307 is a paperweight and best left in the US. That is taking up space that another #302 tool holder could occupy. I actually this was the 400 series holder (which I have). Given that it seems to be the next size down, I wouldn't rush out to buy the M12x1.75 dog point screws, just in case it takes a smaller size.
Hunting American dentists since 2015.