I was introduced to this item by a fabricator at a show and his excitement was so overwhelming I had to take a look at it. As scrapers go it's pretty simple but it's unique design and "feel" make it superior. It's been around for over 30 years but it's main use has been in the automotive and marine industry. It's large wood handle is fitted with 1/8" thick Nickel-chrome plated shank. A precision ground, (+or- .00002) double edge carbide blade brazed to the shank actually does the scraping. Two blade widths are available, 1-1/4" and 2-1/4". The smaller is great for scraping bowl to top joints and the larger is great for deck seams. Both scrapers can be used to remove old gaskets, rust, carbon, paint, varnish, glue, concrete, welding spatter and well, just about anything. Both tools come with a lifetime guarantee.