The fastest and easiest way to touch-up nicks and scratches is with an easy-to-use PRESTO Gun Blue Pen! Penetrates hard steel instantly and gives a durable blue-black finish that won't rub off. Use like a marking pen for one coat coverage on non-stainless steels. No spill. No drip. Simply rub on this
gun cleaning supply with "bullet point" felt tip!
Features:
- Fastest method to touch up nicks & scratches
- Felt tip will not harm surfaces
- Will NOT blue stainless steel, aluminum or non ferrous metals