Techniks part # 04010-15S. Others T.I.R. 0.0010" - TECHNIKS T.I.R. 0.0004". Sizes included: 15 pieces 1/8" thru 1" by 16ths (1/64" clamping range for each individual collet). The most accurate TG collet in the industry- 0.0004" Total Indicated Runout (T.I.R.)!
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