SK-50 to HSK-63A/C GUHRING Adaptor, 40mm Gage Length, With Manual Radial PowerClamp Set & Brass Lock Ring SK to DIN ISO 7388-1 Form AD | For clamping HSK-A/C shanks to ISO 12164-1 / DIN 69893 | For Conventional Cooling From 6 Bar Minimum to 80 Bar Maximum Pressure. Guhring's PowerClamp system is designed for universal applications in transfer lines, machining centers, turning centers and setting equipment. Advantages: simple assembly thanks to uncomplicated spindle contour | few moving components, therefore optimal force transmission | high clamping force, therefore excellent bending resistance for low-speed heavy machining operations | secure ejector function | internal coolant supply | coolant sealing from p > 6 bar to max. 80 bar. Series No. 4512, Order Code 050.0630. Made in Germany, Guhring Part #9045120500630