Posted on Chisel Size, Ray Iles Mortise
#1 posted 09-27-2012 05:42 PM |
What did you measure it with? Even if it were metric approximation of English units 5/16” is 7.94mm so an 8mm would be the metric “equivalent”. But 3/8” is over 9.53mm and is often equated to a 10mm chisel. That’s a whole size range off. |