5/16″ Hexagon Broach Gages (or gauges) can be used with Polygon’s standard ASME 5/16″ hex broaches to make sure that the size of the hexagon hole has been machined properly. Unlike rotary broaches, hex broach gages have no taper.

Polygon’s hex broach gages are made as GO and NOGO pairs. Each gauge is designed to be held by hand and inserted into the hexagon hole. If the NOGO gage fits, then the hole is too large and the part fails inspection. If the GO gage fits, then the hole is the right size and the part will pass inspection. If the hole was too small the GO gage would not have fit inside.

** GO and NOGO hex gages can easily be customized. Call us with your dimensions at 239-628-4800. Custom hex gage delivery requires 2-3 days for manufacturing.

Gauge Tolerances Conform to ANSI B18.3

Nominal Size (Inches)
“GO”
“NO-GO”
Standard
Part Number
Price
5/16″ Hexagon Gage
.3127
.3160
ANSI B18.3
H03155G
$239.00