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The limit gauge for insert screws is the limit gauge for inserting inserts (helisate).
HL-LG is a unique symbol for OSG. The limit gauge is a set of GO and one on the stop side.
The difference from a normal thread gauge is that the plug gauge for insert screws is indicated with an H in the circle after the size .
| Gauge inspection of insert screws |
| Inspection with limit plug gauges for insert screws If the GO passes and the stop side does not enter more than 2 turns, it passes. * Please inspect before inserting the insert. |
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| A: GO B: Stop side |