Made from a piece of spring steel from a drain snake .024" thick. The inside curves are made using a 1/4" diamter grinding stone with a Dremel, them a 1/4" round chainsaw file. Final cuttings were made using a grinding stone shaped to fit the curves and then needle files.
Polishing is again with 240 grit and 400 grit Dremel wheels and then 600 paper, if needed.
The original Sparrows pick was used as a guide.
Pete
Sioux Falls SD
