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CM7G Round Insert Stamps

Columbia's CM7G Round Insert stamps are great for use in the 78 impact Marker.

Below you will find all the character sizes we carry, along with the dimensions for each insert. All alpha-numeric characters are offered here online.


3/16" CM7G Stamp Insert $5.30 $4.24 Online Sale! CM7G19
Please select a number or letter for the character:

3/16" character steel stamp insert for use in CMT's Impact Markers

 Product specifications:

  • Character size: 3/16"
  • Face diameter: 1/4"
  • Overall length: 3/4"