The Graticules Ltd. "Through-the-Hole" microscope is designed for critical inspection of plated through
holes in printed circuit boards. When using this tool, the inspector has a view of the complete hole,
with the image being distorted to a "bucket" (truncated cone) shape. When used over a light box: voids,
drill damage, burrs obstructions, plating faults, can be identified quickly and with certainty.
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