Handwound NoCaster Alnico 3. Bloodstone Guitar Works. Pickup bobbins - Individually handbuilt using laser cut Forbon (vulcanized fibreboard) flatwork and sand cast Alnico 3 pole pieces. Coil Magnetising (Gaussing) - Hand magnetized using super strong Neodymium magnets, with polarity depending on whether noise cancelling is required or not (in 2 or 3 pickup applications).