This Concentric Outside Diameter (OD) clamping tool repeats within tenths, is compact for high density application and tough enough to limit yourself to tooling capabilities. Patent Pending design can be machined, to hold any shape, completely through clamp and fixture plate as well as gripping workpiece above compression nut.22.5° incremental laser engraved indicators on small cap for applying repeatable torque without torque wrench and for applying preload (15°-45°) when machining clamps to actual workpiece dimensions.