Marking Kit Character Height 3/8 in Character Type Set Letter/Number/Symbol Set Characters Included 0 to 9 A to Z Ampersand Blank Space Comma Dash (-) Period (.) Slash (/) Duty Moderate For Maximum Surface Hardness 50 on A Rockwell C Scale For Shank Diameter 5/8 in Holder Length 6 in Holder Shank Size 3 1/2 in Holder Width 3 1/2 in Impression Character Style Gothic