44/40 has long been one of the cold-blue standards in the industry and we here at Brownells are delighted to have purchased the original, high-speed formula and the legendary name and brought it back to its many fans. 44/40's familiar bluing action is almost magic; simply dampen a patch with 44/40, wipe it on and wipe it off immediately with a dry one. The coloring action happens instantly and the color penetrates deep into the metal for a long-lasting finish. There's no need to soak or rub for long periods. Surface preparation's easy, too; for scratches, just clean and degrease as you normally would and apply 44/40. As a blue for external/internal parts and pieces, the procedure is just as easy. Bring the surface to the finish you want, clean it and wipe-on, wipe-off. 44/40 will do the job beautifully. And, it's great for other jobs around the shop, too. The quick action and dark color makes 44/40 an excellent substitute for traditional layout fluids. The steel is darkened quickly so your layout lines will show up. There's no surface buildup of "paint" to foul up dimension readings and nothing to peel or flake off. Coat lathe and cutting tools before sharpening so you can see where you're grinding. Use 44/40 to age brass and copper in restorations, or just to reduce glare and reflection. You can literally do thousands of jobs with 44/40!