The HSK80A tools are either prebalanced to a high specification or balanced-by-design and will perform effectively up to 15,000 RPM. For applications higher than 15,000 RPM, WIDIA™ recommends that the complete toolholder assembly (toolholder, coolant tubes, collets, hardware, and cutting tools) be balanced as one identity. • ISO 12164-1/DIN 69893-1 Form A 1:10 short taper. • High axial and radial repeatability compared to CAT, BT, and DV V-flange 7/24 taper tooling. • Maximum 16,000 RPM. • Maximum 100 bar (1,500 psi) coolant pressure. WWW.WIDIA.COM B93