SK drill chuck SPIRO

B16self-tighteningwith rapid coupling

• Self-tightening flat jaw drill chuck with metal sleeve and clamping force safety device. • Industrial design with maximum precision. • The locking of the pawl prevents the unintentional release in counterclockwise rotation up to a turning moment of 15 Nm • All functional parts are hardened and ground Especially suitable on machining centers, stationary drills and drilling machines with high precision requirements. • Precise concentricity of up to 0.07 mm over the whole clamping range • Increase in the clamping force proportional to the cutting force by automatic retightening function and no releasing in counterclockwise rotation • Conical mount for maximum driving force and precision