Abstract: An apparatus for incrementally adjusting a modular tooling coupling. The present invention provides a first coupling member adaptable to receive a first portion of a modular tool wherein the first coupling member has a contoured surface. A spacer provides a first contoured surface for matingly engaging the contoured surface of the first coupling member and a second contoured surface that is misaligned with respect to the first contoured surface of the spacer. A second coupling member is adaptable to receive a second portion of the modular tool, and the second coupling member has a contoured surface for matingly engaging the second contoured surface of the spacer for providing incremental angular adjustment of the first coupling member relative to the second coupling member.