The 35.01.130 main spindle collet closing clamping fingers is a precision mechanical wear component designed for Gildemeister DMG Mori GM35 and GM35AC multi-spindle lathes, used in the bar clamping system with 9069E bar clamping collet for machining bars up to 35mm maximum diameter. clamping fingerss 3501130 are housed in the slots of the closing group and work as lever, support and thrust transmission elements, bearing against sleeve 3501131 and bushing 3501119. Through the lever movement of bell 3501132, the clamping fingerss transfer load to the command chain and generate the pullback required to close the collet on the bar. In this system, the clamping fingers is not merely a contact element but a kinematic component that transforms, distributes and directs the command force, maintaining the correct sequence between main spindle rotation, sleeve position, support on the bushing and pullback of the clamping chain. During the working cycle, sleeve 3501131 takes rotation from the main spindle and works in coordination with the clamping fingerss housed in the slots; these elements must remain correctly guided, supported and synchronized so that the movement of bell 3501132 is converted into regular and repeatable thrust on the sleeve and bushing 3501119. The quality of contact between clamping fingers, slot, sleeve and bushing affects stroke accuracy, clamping repeatability and bar gripping stability. In the machining of bars up to 35mm diameter, bar mass, rotational inertia and clamping loads are high; for this reason, clamping fingers efficiency is essential to prevent micro slipping, vibration, loss of concentricity, cutting instability, dimensional errors, form errors and workpiece geometry defects. If the clamping fingerss operate with excessive play, marked surfaces, compression marks, localized wear or irregular sliding, closure of collet 9069E may become less uniform, with reduced effective force on the bar, increased functional play and poorer stability of the main spindle. From a kinematic point of view, clamping fingers 3501130 participates in several functions of the main spindle group: it follows the rotation of the system driven by the spindle, works in the slots as a guided element, receives and transmits the thrust generated by the lever movement of bell 3501132, bears against sleeve 3501131 and bushing 3501119, contributes to pullback of the clamping chain and allows controlled closure of bar clamping collet 9069E. This function must remain coordinated with the spindle drum, bar feeding system, main spindles, possible front tool spindles, radial slides, axial slides and auxiliary machine systems, because any irregularity in bar gripping can affect subsequent stations and production continuity of the multi-spindle lathe. The component is considered a wear part because it operates in areas subject to compression, rubbing and sliding; over time it may wear on the support surfaces, working edges, contact areas with the slots and in the keyway seat, which is a sliding and functional locating area. Wear in these areas can increase play, worsen functional parallelism, make thrust irregular and reduce phase accuracy between command elements. For this reason, the part is checked during replacement of clamping fingerss and during service work on sleeve 3501131, verifying the condition of contact surfaces, housing slots, support marks, edges and areas subject to compression and rubbing. If wear marks, deformation, steps, rounded edges, deep impressions or abnormal play are present, replacement of the clamping fingers becomes a necessary technical intervention to restore correct pullback kinematics and full efficiency of collet closure. For preventive and extraordinary maintenance departments, automatic turning shops, machine tool builders, automotive production and precision engineering, the 35.01.130 collet closing clamping fingers is a critical spare part for maintaining clamping reliability, main spindle stability and production continuity on Gildemeister DMG Mori GM35 and GM35AC multi-spindle lathes. Tadaah offers this component as a functional element of the clamping fingers sleeve and collet closing system, to be assessed not only for dimensional compatibility but also for its kinematic role in thrust transmission, group pullback and controlled closure of the 9069E bar clamping collet.