For any applications higher than 12,000 RPM, WIDIA™ recommends that the complete toolholder assembly (toolholder, retention knobs, collets, hardware, and cutting tools) be balanced as one identity. • ANSI B5.50 7/24 taper. • Standard 1-8 drawbar thread. • Taper accuracy of AT3 specification or better. • All tools set to form AD coolant specification. Many can be converted to form B style. • Maximum 12,000 RPM. • Maximum 100 bar (1,500 psi) coolant pressure. WWW.WIDIA.COM E39