Fine Sprue Cutter Exclusive to us! We had these sprue cutters made for us and our brief to the manufacturer was to make them the best available. They succeeded and they are as good as it gets. _ So good in fact that we guarantee them for a full year providing they are used only on the materials they were designed for plastic and alloys such as copper brass and nickel silver. Perfect for fine wiring work flush cutting component leads trimming parts from brass etchings and many other precision workbench tasks.