Forums Tools and Other Hardware What Instruments used to measure Girdle thickness & [W] Width of Stone? Reply To: What Instruments used to measure Girdle thickness & [W] Width of Stone?

#2619

Alan Balmer
Keymaster
@alanbalmer

Good idea, Joseph. In the US, wire gauge sizes start at about 0.34mm and increase in quite small increments. Metric drills below 1mm are not common, but they are available. I just found on Amazon, listed as “Zona 37-151 High Speed Steel Twist Drill Set, Metric” a set for $16.30 which has 0.3mm-1.0mm in 0.05mm increments, and up to 1.6mm in 0.1mm increments. So they are available.