Type Holder Character Height 3/16 in Character Type Set Letter/Number/Symbol Set Characters Included A to Z 0 to 8 (With 6 Serving as 9) Ampersand Blank Space Dash (-) Slash (/) Duty Moderate For Maximum Surface Hardness Rockwell C Scale 58 to 62 For Shank Diameter 1/4 in Holder Length Not Applicable Holder Shank Size Not Applicable Holder Width Not Applicable Impression Character Style Standard