5 Piece Variable Multi Step Down Drill Bit Unibit Tool Uni Stepped Size Metal Bit

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For faster, smoother cutting. Features: High speed steel with cobalt coating Two flutes, automatically deburrs as you drill Tri-flat shank for sure grip Carry aluminum case Include s: 1/4" Shank: 3/16" - 1/2" in 1/16" increments: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2". 1/4" - 3/4" in 1/16" increments: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4". 3/8" Shank: 1/8" - 1/2" in 1/32" increments: 1/8", 5/32", 3/16", 7/32"1/4", 9/32", 5/16", 11/32", 3/8", 13/32", 7/16", 15/32", 1/2". 1/4" - 1-3/8" in 1/8" increments: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8". 3/16" - 7/8" in 1/16" increments: 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8". Show more