Erickson™ Taper Face Contact Shank Tooling System • CVKV50 Series Erickson Taper Face CV Contact Taper Tooling is manufactured from premium materials and to the latest ANSI B5.50 specification standard. Controlled, increased flange thickness to the rear of the flange gains face contact between spindle and holder. CVKV50 2 controlled drive key widths. Large chamfer lead-in. Face contact. Tool changer V-groove. Inch drawbar. 7/24 taper. Drive key slots are unequal depths. Detent hole identifies shallow drive key slot. C52 WWW.WIDIA.COM