Number Set, 1/4 In. H, Steel, 80 to 89Mfr # 80 89 Item Number Set Material Steel Includes (10) 80 to 89 Case Material Wood Impression Letter Type Gothic Hardness 50 On A Rockwell C Scale Standards Not Applicable Product Type Character Sets Stamp Material Steel Shank Thickness 9 16 in For Max Surface Hardness Rockwell C50 Duty Heavy Characters Included 80 thru 89 Impression Character Style Round Face For Maximum Surface Hardness 50 on A Rockwell C Scale Character Type Set Double Digit