THIS PAPER DISCUSSES A GRINDING DEVICE AND CLAMPING METHOD FOR HIGH PRECISION ID GRINDING BETWEEN DEAD CENTERS ON AN INTERNAL GRINDER EQUIPPED ACCORDINGLY. THIS PATENTED APPROACH USING A SPECIAL HEADSTOCK, A STEADY REST AND A HOLLOW CONICAL DEAD CENTER, ALLOWS GRINDING OF PARTS INTERNALLY USING THE SAME CENTER POINTS AS OD GRINDING OPERATIONS. THIS METHOD IS PARTICULARLY SUITED FOR ID GRINDING OF LONG PARTS, TOOLHOLDERS, ETC., ELIMINATING THE NEED FOR SPECIAL AND COMPLICATED CLAMPING CHUCKS AND ACCESSORIES.