Magnetism always exist, workpiece release by sliding out from edge
The chuck has a strong holding power because the tools lay directly onto the magnets and so you can re-sharpen very small pieces. The upper part of the chuck is made of BRASS, and that grants a longer life of the tool. The magnetic chuck can be both secured to any type of magnetic chuck and mechanically bolted by means of the four holes around the edges, aligning or flanking a number of chucks.
It is suitable also for smaller work-pieces. It can be used on most straight knife grinding machines, and can be fixed on either a standard magnetic chuck or a mechanical table.