https://cleanflow.net/products/jet-standard-29-piece-drill-bit-set.js
Jet Black Oxide Drill Bit Set | 29 Piece Set | General Purpose (For Steel/Wood)
Jet Black Oxide Drill Bit Set hast 29 most common drill bit sizes contained in an indexed metal box.
Sizes 1/16" though 1/2" by 64ths.
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Self-centering
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Made from high speed steel - drills faster, lasts longer
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Fully ground flutes for consistent hole sizes and fast chip evacuation
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Black oxide finish prevents chips from welding to bits - extends bit life