This industrial tool was complete garbage. When I tried this product, it was impossible to get a sharp edge on it. The blade kept chipping and left me with a rough CUT every time .I expected a much better quality chisel from an industrial and scientific brand like Stanley. The only positive was the price, but even that wasn't worth the frustration and poor results. Save your money and invest in a better quality chisel piece..
These chisels came with some kind of coating that had to be soaked in acetone for nearly 20 minutes to remove. They need to be sharpened immediately. They take advantage of it fairly easily, which leads me to suspect they won't stick with it for long. I have an old Stanley with black handles that I have used for many years and the difference between the old and the new is quite noticeable (the old is much better). Time will tell I think.