Each set includes 3 complete tool kits with 20 inserts per kit "10 each of short and long" for a total of 60 inserts. 2 additional kits can be added later. Thread Sizes = 1/4-20, 5/16-18, 3/8-16
Insert lengths included in kits qty. 10 each of::
Mini Master kit p/n 1203 (1/4-20x.380 / 1/4-20x.500) (5/16-18x.450 / 5/16-18x.620) (3/8-16x.520 / 3/8-16x.750)
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