GUHRING Front Mount Spindle Adaptor For HSK-25A/C Shanks, w/Manual Radial 4-Point Clamp For Conventional Cooling For clamping HSK-A/C shanks to ISO 12164-1 / DIN 69893 | Radial Alignment Adjustable | For Conventional Cooling From 6 Bar Minimum to 80 Bar Maximum Pressure. Conventional 4-point clamping sets offer enormous clamping force and optimal cooling lubricant supply. They are suitable for radial manual HSK tool clamping. Advantages: simple and hence more economic spindle manufacture | short, small diameter spindles with constricted spindle bearing spacing | suitable for a pressure up to 80 bar. Series No. 4386, Order Code 019.0000. Made in Germany, Guhring Part #9043860190000