The quick-action chuck for the shaper allows bits and accessories to be quickly repositioned. The chuck is made of high carbon steel, which ensures the strength of the mechanism itself. The body of the chuck is coated with black oxide, which completely makes it impossible for any corrosion to occur. The seller offers several types of cartridges, in particular, with a short and long skirt. The reviews note that the chuck is convenient to work with, clamps well, no run out is observed during work.