Number Set Character Height 1/4 in Character Type Set Number Set Characters Included 0 to 8 (With 6 Serving as 9) Duty Heavy For Maximum Surface Hardness Rockwell C Scale 58 to 62 For Shank Diameter 1/2 in Holder Length Not Applicable Holder Shank Size Not Applicable Holder Width Not Applicable Impression Character Style Gothic Includes (9) 0 to 8 (With 6 Serving as 9) Includes Holder No Letter Casing Not Applicable Maximum Characters per Line Not Applicable