US-103 Universal SupportThe Universal Support is the basis for all Tormek jigs. US-103 has a square cut Acme style thread which prevents damage by the locking screws and a Micro Adjust with scale for precise setting of the edge angle and cutting depth.Fits Tormek T-4, Tormek T-3 and 1200 models.The versatile Tormek Universal Support is the basis of the Tormek system. It is made of 12 mm (approx. 1/2") round steel and has a double mounting for maximum stability.