Locksmith Stamps Character Height 3/32 in Character Type Set Locksmith Set Characters Included Master Duty Moderate For Maximum Surface Hardness 50 on A Rockwell C Scale Holder Length Not Applicable Holder Shank Size Not Applicable Impression Character Style Gothic Includes Master Product Type Hand Stamp Kit Shank Length 3 in Shank Thickness 1/2 in Shank Width 1/2 in Stamp Material Steel Standards Not Applicable US DOE RDT-F7-3T Specification Compliance Not Applicable