Top Reduced Shank Counterbores

IRWIN Drill Bit Set, General Purpose, 3/8-Inch Reduced Shank, 29-Piece (60148)

  • These drill bits are constructed of M-2 high-speed steel for strength, as well as heat and wear resistance.
  • Each drill bit has a standard 118° point for use in metal, wood and plastic.
  • 3/8-inch reduced shank fits most 3/8-inch drills.
  • These IRWIN drill bits come in a metal index case.
  • Includes 1/16″ through 1/2″ drill bits in 1/64″ increments.
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Drill America 33 Piece m35 Cobalt Reduced Shank Drill Bit Set (1/2″ – 1″ x 64ths), DWDCO Series

  • 33 Piece Set with 1/2″ Reduced Shank Drill Bits.
  • Effective in drilling tough, high tensile strength materials like stainless steel, Inconel, and titanium.
  • Reduced Shank Drills expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes.
  • 135 degree split point tip for self-centering and reducing thrust.
  • Manufactured to Aerospace Standard 907 and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel.
  • Sizes include: 1/2″, 33/64″, 17/32″, 35/64″, 9/16″, 37/64″, 19/32″, 39/64″, 5/8″, 41/64″, 21/32″, 43/64″, 11/16″, 45/64″, 23/32″, 47/64″, 3/4″, 49/64″, 25/32″, 51/64″, 13/16″, 53/64″, 27/32″, 55/64″, 7/8″, 57/64″, 29/32″, 59/64″, 15/16″, 61/64″, 31/32″, 63/64″ and 1″..
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IVY Classic 10332 1/2 x 12-Inch Premium Carbide Masonry Drill Bit, 3/8-Inch Reduced Shank, 1/Card

  • Round shank designed for rotary and percussion hammer drilling through block, brick, stone, concrete and marble, Swift Cut (Registered Trademark).
  • Tungsten Carbide reinforced head – precision ground.
  • Induction-hardened body ensures straightness and strength, sandblasted finish.
  • Engineered with wide flutes for fast dust removal.
  • Diameter: 1/2-inch, Overall Length: 12-inch, Shank: 3/8-inch Reduced Shank, Flute Length: 6-3/4-Inch.
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BOSCH SF2561 2-9/16 In. Self-Feed Drill Bit

  • 7/16 In. hex shank for reduced slippage (3 In. and larger three-flat shank).
  • Chip lifters and spurs can be re-sharpened to maximize bit life.
  • Deep cutter gullets prevent stalling and provide smoother drilling.
  • Replaceable threaded tip and hex key included.
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BOSCH SF3001 3 In. Self-Feed Drill Bit

  • 7/16 In. hex shank for reduced slippage (3 In. and larger three-flat shank).
  • Chip lifters and spurs can be re-sharpened to maximize bit life.
  • Deep cutter gullets prevent stalling and provide smoother drilling.
  • Replaceable threaded tip and hex key included.
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COMOWARE 29-Piece Drill Bit Set, High-Speed Steel Black and Gold Finish with 135 Degree Split Point Tip, 1/16' to 1/2' x 64ths Increments

  • Versatile general-purpose drill bit set,High-speed steel (HSS) and gold oxide finish resists corrosion and increases the hardness of the drill bit..
  • Assortment of 29 jobber length drill bits (1/16" to 1/2" in 1/64" increments)..
  • Shanks fit standard three-jaw drills,and use in drilling wood,plastic and Light-gauge metal..
  • Three unique shank styles keep bits securely seated to save you time and frustration. 1/16"-11/64" is round shank, 3/16"-3/8" is three flatted shank, 25/64"-1/2" is 3/8" reduced shank and three flatted shank..
  • ORGANIZED HOLDER- Set includes the drill bit holder with size index for easy storage and organizing..
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uxcell Reduced Shank Drill Bit 21.5mm High Speed Steel HSS 4241 with 1/2 Inch Straight Shank

  • High Speed Steel tool - 21.5mm cutting diameter. Good for most general purpose applications, featuring a combination of hardness and toughness for wear resistance..
  • Reduced Shank - Expanding the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes..
  • Polished Finish - Polished treatment adds lubricity. Small pockets on the surface of the tool that act to hold coolant near the cutting edge..
  • Wide Application - Drill low and medium tensile strength materials, such aluminum, iron, copper, brass and metal. Reduced shank drill bit is widely suitable for wood processing. (Hardness of the material to be drilled should not exceed 29HRC.).
  • Please Note: To make clean and precise holes, water is required for lubrication and cooling when drilling metals, and the feed speed should be controlled. Increased use of water lubrication will extend drill bit life..
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Viking Drill and Tool 29201 Type 280-D Reduced Shank Cobalt Drill Bit, 5/8″

  • M42 Cobalt 1/2-inch Reduced Shank Silver and Deming 135-Degree Split Point.
  • 135-Degree split point for accurate centering and fast penetration.
  • Precision ground point, flutes, body, clearance and drill diameter for ultimate accuracy and performance.
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Chicago Latrobe 190F High-Speed Steel Reduced Shank Drill Bit Set With Stand, Black Oxide, Round Shank with Flats, 118 Degree Split Point, 33-Piece

  • Set of 33 reduced shank drill bits includes inch sizes 1/2″ through 1″ in 1/64″ increments.
  • High-speed steel (HSS) provides hardness for wear resistance.
  • Black oxide finish reduces bit wear while promoting chip and coolant flow on ferrous material.
  • Self-centering 118-degree split point penetrates material without a pilot hole.
  • Round shank with flats has three flat sides for better tool grip than a standard round shank.
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Chicago Latrobe 190F High-Speed Steel Reduced Shank Drill Bit Set With Stand, Black Oxide, Round Shank with Flats, 118 Degree Split Point, 16-Piece

  • Set of 16 reduced shank drill bits includes inch sizes 17/32″ through 1″ in 1/32″ increments.
  • High-speed steel (HSS) provides hardness for wear resistance.
  • Black oxide finish reduces bit wear while promoting chip and coolant flow on ferrous material.
  • Self-centering 118-degree split point penetrates material without a pilot hole.
  • Round shank with flats has three flat sides for better tool grip than a standard round shank.
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BOSCH BL2638 11/64 In. x 6 In. Aircraft Fractional Black Oxide Drill Bit

  • Speed helix design for three times faster drilling than standard bits.
  • Last 50 percent longer than high-speed steel.
  • Easier drilling, reduced heat and extended drill bit life.
  • Available in jobber length, stubby length, extended length (aircraft), 1/2 In. reduced shank (Silver and Deming).
  • For use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon and composite materials.
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BOSCH BL2759 1/2 In. x 12 In. Extra Length Aircraft Black Oxide Drill Bit

  • Speed helix design for three times faster drilling than standard bits.
  • Last 50 percent longer than high-speed steel.
  • Easier drilling, reduced heat and extended drill bit life.
  • Available in jobber length, stubby length, extended length (aircraft), 1/2 In. reduced shank (Silver Deming).
  • For use in steel, copper, aluminum, brass, oak, maple, MDF, pine, PVC, polycarbonate, acrylic, ABS, nylon and composite materials.
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