Technical Information Steep Taper V-Flange Form AD Form B coolant through coolant through flange form B blocked flange form B coolant stop coolant through spindle coolant stop coolant through spindle screw option form AD screw option form AD blocked WIDIA™ toolholders are positioned in the AD coolant form with self-sealing, Form B toolholders can be converted back through the drawbar form AD by nylon-coated screws. The coolant screws are designed to completely seal simply threading the coolant stop screw and stopping below the flange coolant the tool and prevent coolant leakage under pressures up to 1500 psi. entry hole. Changing coolant form can be achieved many times before it is However, if form B coolant is desired, the coolant stop screws must necessary to replace the coolant stop screw. be backed out into the form B position. All form B capable tooling is supplied with a label designating the required screw components for each steep taper size and information necessary for selecting a wrench to adjust the coolant stop screws. IMPORTANT When choosing a desired coolant form, the correct retention knob should be used in conjunction with the coolant form applied. Form AD Form B Form AD Form B (through-coolant hole) (no hole through or half hole) WWW.WIDIA.COM K51 Technical Information