Small Hole Gage Set-Half Ball
Model #: GA-SM290E
- Made in China
- Half Ball measuring surface.
Set measures .125" to .5" (.125-.200, .200-.300, .300-.400, .400-.500) - 4 gages in a case.
Gaging surface is a half ball with a flat bottom, fully hardened.
Knurled knob at end of handle is used for size adjustment.
Hole size is obtained by measuring over the contact points with a micrometer.