Albrecht Keyless Balanced Drill Chuck An Albrecht keyless drill chuck balanced for high-speed CNC operation — combining the convenience of keyless tightening with the dynamic balance required by machining centres and high-RPM spindles. Albrecht invented the keyless drill chuck in 1932 and has refined the mechanism across nine decades: the self-tightening action that locks harder under cutting load, the ground jaw geometry that delivers low runout, and the robust build that survives the demands of production machining. The balanced version is specified for machining centre use where unbalanced tooling at high RPM causes vibration, spindle wear, and degraded surface finish. Dynamic balance to G2.5 or better is the industry standard for CNC toolholding above 8,000 RPM — and Albrecht's balanced chuck meets that requirement while retaining the quick tool-change advantage that keyless operation provides. Made in Germany.