For sale is a TG-100 Collet Holder for CNC Lathes. Marked: 78363 / 2.000X100 / K3. 2" Diameter round shank. 3-5/8" Length of shank. Approximately 5.5" overall length of holder. The nose-piece screws on and off correctly. Some dust and dirt, but the overall condition of this item appears good.