Steelex 15 pc. 5-C Collet Set M1088. Sizes include: 1/8" 3/16" 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 11/16" 3/4" 13/16" 7/8" 15/16" & 1". Package Contents: Steelex Collet Set Steelex M1088 15 pc. 5-C Collet Set
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