E39 lamp cap gauge,Go gauges for E39 caps on finished lamps

IEC60061-3,7006-24B-1 E39 “Go”gauges for E39 caps on finished lamps
IEC60061-3,7006-24C-1 E39 “Not Go”gauges for E39 caps on finished lamps
IEC60061-3,7006-24A-1 E39 Gauge for finished lamps fitted with E39 caps for testing contact making