Parts - Pen Pin Compatible with:Benchtop Extruder It's a hands-on project that

It's a hands-on project that brings the principles of material science and circular design to life

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Parts - Pen Pin Compatible with:Benchtop Extruder It's a hands-on project thatInternal core pin for our Triangular Pen Moulds Machined from high grade H13 tool steel, the Pen Pin sits directly inside the mould cavity during the manufacturing process to form the exact internal clearance needed for your ink refills. The pin features an ultra smooth finish to prevent the hot polymer from binding, promoting a clean release and a consistent internal diameter every time you clamp the mould. Machine compatibility & variants: Please