Identification stamp dati 3900 > Type B

Months (e.g. Dec.) connected with type C (displays e.g. Dec. 22), complete stamp

  • Body for adjustable insert
  • Adjustable insert with screw slot, for adjustment and to change the insert
  • Fitting thread
  • Clamping unit for infinite locking of the adjustable insert
  • Material for sleeve and adjustable insert: 1.4034, hardened HRC 56 ± 2 stainless
  • Inscription laterally reversed

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