Size R8 ER40 R8 ER32. 15pc ER40 collet set : 1/8" - 1" by 16th (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"). 1pc R8-ER40 collet chuck, 15PCS ER40 collets, 1pc ER40 spanner.
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