TORMEK T-4 is an upgrade from the T-3 model. The new design adds a level of precision previously only seen on the more expensive T7 model. The new Cast metal top is the reason for the increase in precision. Vital functions like the motor and the main shaft are mounted in the zinc cast top which includes the integrated sleeves for the Universal Support. This advanced design ensures an unbeatable precision for the Universal Support, which is the foundation of the Tormek jig system. You get a high quality machine ideal for home and hobby work which can sharpen all the common edge tools. The T-4 now includes the Stone Grader SP-650, AngleMaster WM-200, Honing compound, DVD and the comprehensive Tormek Handbook on sharpening. Configure the T-4 with your choice of jigs according to the tools that you are choosing to sharpen. The jigs are sold separately.