Shinwa Radius Scale A-1 for R0.5 to R7mm 10X Magnifier These dogs can't be used

These dogs can't be used in the actual HNT Gordon tail vises

The abrasive particles in the Shapton stones are very consistent in size and this uniform size allows the stone to cut quickly while leaving a very consistent finish

It has a flat surface on one side and the cabinet rasp rounded shape on the other

The locking knob is knurled brass

Shinwa Radius Scale A-1 for R0.5 to R7mm 10X Magnifier These dogs can't be usedThis gauge from Shinwa is made from hardened and tempered stainless steel and can be used to measure outside radius, outside diameter, sheet thickness and also is a rule. The radius measurements have a range of 0. 5 to 7 mm, 0. 5 to 6 mm for diameter, and 0 15cm for the rule. The accuracy is 0. 1 mm for radius, 0. 05 for diameter and 0. 15 mm for the length measurements on the rule. Made in Japan