None The Fletcher-Terry V-Groove Tool Holder with Blade For Cutting Grooves into ACM Up to 4 mm T

The Fletcher-Terry V-Groove Cutting tool is used in the FSC Substrate Cutter. It's used for cutting grooves into ACM, from 1 mm to 5 mm D. There are fine adjustment increments for precise depth control and a thumbscrew depth control feature. This is a sold separate option for the Fletcher-Terry FSC Substrate Cutter.