US PRO Tools 4pc Drill and Countersink Bit Set Quick Change HSS-G 7126. US PRO Tools 7pc Tapered Drill & Adjustable Countersink HSS-G Set 7127. 10 pieces of each of the following sizes: 1, 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.2, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5 and 10mm.
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