Pc Test, Laser, Printed Circuits, Electrical Test, Test Services, Electrical Test Fixtures, Laser Service, Laser Direct Imaging, Drill, Rout, Skive; Laser direct imaging services. Laser direct imaging (LDI) tooling includes scaled artwork to match any dimensional change in material & four tooling holes on each panel to measure the dimensional change. Standard LDI tooling hole is 0.01015 in. Tooling holes can be located anywhere on panel but no more than 20 in. apart. Collimated laser light & no glass or ...