ST5128 Go-NoGo Gage Measuring Tool Kit (G220 // G221 // G222 // G224 // G225 // G226 // G227 // G125) To Periodically Gage M225
- Compatible with YJQ-W2A (M22520/1-01) Hand Crimping Tool and YJQ-W2Q Pneumatic Crimping Tool.
- Each crimp tool has an accurate indenter working diameter — gage ensures proper tool status.
- Periodic gaging is recommended for calibration and performance.
- Includes G125 Go/No-Go gage.
- Note: Designed per MIL-SPEC, manufactured by JRready. Not in QPL & not DMC tools.
Gaging Instructions
"GO" Gaging: Fully close tool, apply firm hand pressure, insert the "GO" gage. It must pass freely between indenters.
"NO-GO" Gaging: Fully close tool, apply firm hand pressure, try to insert the "NO-GO" gage. It may partially enter but must not pass completely through.
Inspection & Verification: Set crimp depth selector, insert first the "GO", then the "NO-GO". The "GO" should pass freely, the "NO-GO" may enter but must not pass through.
Indenter Working Diameter (in/mm)
| Gage Model |
GO Size |
NO-GO Size |
| G220 | .0280 | .0330 |
| G221 | .0320 | .0370 |
| G222 | .0360 | .0410 |
| G224 | .0450 | .0500 |
| G225 | .0520 | .0570 |
| G226 | .0590 | .0640 |
| G227 | .0680 | .0730 |
| G125 (M22520/3-1) | .0390 | .0440 |