This Chip Guard was Designed to keep chips away from the Draw Nut assembly on the Kitagawa B212 Chuck. Simply place into center of Chuck, Line up the Mounting holes with the holes in the Chuck, use the Screws that came with your Kitagawa Chuck to Screw the 3D printed component into place. Hardware is NOT Included. Replace when needed due to wear from chips and/or damage from operators when loading stock into your CNC Lathe.