I used it to carve rifle cartridges with the Pelican 1750 foam case (http://www.amazon.com/gp/product/B000AOMA1S/ ref=wms_ohs_product?ie=UTF8&psc=1). I love being able to control the temperature and as you'll find if you keep the heat high, the wire cuts too quickly and you get jagged cuts. Reduce the temperature to 4-5ยฐC and it will cut slowly enough to get nice, smooth, straight cuts. Also, the price of this product was a bit higher than expected, rather poor quality. I'm deducting a star for