21K Inside Ring Stamp

21K Bent Shank Inside Ring Stamp.    Mark 21K on the inside curve of ANY ring size. Inside Ring Hand Stamps bent perfectly to contour any standard ring. It has a sharp CNC machine engraved stamp face that is slightly curved; allowing it to be used on all ring sizes.  Product Details  Available in    1/32” approx (.75mm/.8mm) tall **any of these 3 may be marked on shank**    1mm tall Stamp Specs Shank Size: 5/16” inch sq Shank Length: 3" inches O1 Tool Steel, HT 58-62 HRC All Stamp Yours Products CNC Machine Engraved Rated to endure high volume use . Precision tapered to the character face to help ensure accurate alignment. Made in CLE, OH - USA.