Professional HSS Hex Shank Drill Bit set. Comprises 12 of the most popular sizes for most drilling demands. 12 Piece HSS HEX Bits: 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5 mmBenefits. FULL HEX SET: The 1/4 quick-change hex shank is designed to fit all drills type and eliminates the drill bit from slipping inside the chuck.
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