Erickson™ Shank Tools Rotating Tools Catalog Numbering System How Do Catalog Numbers Work? Each character in our catalog number signifies a specific trait of that product. Use the following key columns and corresponding images to easily identify which attributes apply. KM63ACHTG50100M HSK 63 A CH Shank Shank Form Special Feature Style Taper Size (optional) JIS 6339 25 = 25 DIN Form CH = Coolant, high pressure 32 = 32 A = Form A HPV = High performance and balanceable 40 = 40 B = Form B TD = Tunable 50 = 50 C = Form C P = Pin style 63 = 63 D = Form D 80 = 80 E = Form E 100 = 100 F = Form F 125 = 125 160 = 160 B22 WWW.WIDIA.COM