Dimple Die Set Includes Inches 0.50 - 0.75 - 1.00 - 1.25 - 1.50 - 1.75 - 2.00 -2.50 - 3.0 And Zeus 10 Piece Kit Made From 8620 Bearing Steel Rockwell Hardness of 80 Will Do Up To 3/16 Plate Using A 20 Ton Hydraulic Press