Permanent magnet chucks are built using high power Ceramic V magnets. Top plates of 3/8 inch magnetic steel and 3/8 inch nonmagnetic stainless steel are furnace brazed, making a solid, one piece construction. They can be drilled to a depth equal to the thickness of the top plate minus 1/8 inch . Drilling or machining can be done between poles or anywhere in the top plate except where the screws secure the plate to the base. There are no magnets in the top plate. Handles on all permanent magnetic chucks are removable. This chuck has poles of 1/8" magnetic steel and 1/8" nonmagnetic stainless steel. The top plate is furnace brazed, making a solid, one piece unit. It can be drilled or machined to a depth equal to the thickness of the top plate minus 1/8". Machining can be done between poles or anywhere in the top plate except where the screws securethe plate to the base. The magnetic circuit allows excellent holding of thin work as well as the power necessary to hold large work pieces.

Magnetic chucks are primarily designed for holding ferro-metallic work pieces. They consist of an accurately centered permanent magnet face. Fixed ferrous plates or pole pieces, contained within a housing are brought into contact with electromagnets or permanent magnets. These pole pieces are usually flush with the housing surface. The part or work piece to be held forms the closing of the magnetic loop or path, onto those fixed plates, providing a secure anchor for the work piece. Rotary chucks are constructed with poles running off the edge. They operate in the same way as the rectangular chucks do. The top plates are constructed out of brazing magnetic steel and nonmagnetic stainless steel. Dowel pins or screws may be inserted in the top plate to withstand the high torque of used on lathes, grinders and other machinery with heavy lathe cuts. Chuck top plates may be machined for work with odd configurations or an auxiliary plate may be added and removed for other work, leaving the original plate intact. The magnets can be drilled to a required depth. It is between the poles or anywhere in the top that drilling or machining is done. At the top plates there are no magnets. Handles on all permanent magnetic chucks are removable.