The versatile Universal Support is the basis of the Tormek system, and this upgrade for older models incorporates a micro adjust feature for exact and fast fine setting. It is made of 12mm (approx. 1/2") round steel and has a double mounting for maximum stability. The Universal Support can be placed either in the vertical sleeves or in a horizontal base. These two positions enable you to grind either toward or away from the edge. The Universal Support can also be placed horizontally for honing with jigs, but honing must always be done with the wheel turning away from the edge. Tormek US-105 Universal Support with Micro Adjust (excl sleeves) is the foundation of the Tormek system. It can be placed for grinding towards or away from the edge. It is made of 12 mm (approx. 1/2-inch) round steel and has a double mounting for maximum stability. The Universal Support incorporates a micro adjust for exact and fast fine setting. It's functions feature: Support for the grinding jigs; Support for the Diamond Truing Tool, ADV-50D; Tool rest when grinding without jigs; Rest for your hands when grinding free-hand; Rest for your hands when grading the stone with the Stone Grader, SP-650. The Universal Support can be placed either in the vertical sleeves or in a horizontal base.