Drill sets sold in two different sizes and increase in increments of 1/64th of an inch; Sets come in 21 and 29 piece sets.
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CTD Drill Sets
Type 190-AG Drill Sets. Sets increase by increments of 1/64 of an inch. Two Size sets available: 1/16” – 3/8” (21 Piece Set) and 1/16” – 1/2” (29 Piece Set).
