McMaster-Carr logo
    Filter by
    System of Measurement
    Drill Bit Size
    Attribute Image
    Overall Length
    Attribute Image
    Maximum Drilling Depth
    Attribute Image
    Drill Bit Point Type
    Flute Type
    Decimal Size Equivalent
    Number of Flutes
    Reamer Fractional Size
    Voltage
    Industrial Info Snippet
    Flute Length
    Attribute Image
    Bit Shank Size
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Compare
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    16 Products
    About Drill Bits
    industrial info icon

    Compare material, finish, length class, and decimal size equivalents.

    Carbide-Insert Drill Bits

    Image of Product. Shown with Carbide Inserts (Sold Separately). Front orientation. Contains Inset. Drill Bits. Carbide-Insert Drill Bits.

    Shown with Carbide Inserts

    (Sold Separately)

    When you need to drill dozens or even hundreds of holes, use a bit with replaceable carbide inserts. Once the cutting edges wear down, just change the inserts instead of sharpening or throwing the bit away. The holes in the bit channel coolant through the tool for more efficient chip evacuation. Also known as indexable drill bits.
    Each drill bit requires two inserts—one on the inner cutting edge and one on the outer cutting edge. Replacement inserts are sold separately.
    Drill Bits
    Replacement
    Insert Screws
    Shank
    For Insert
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Type
    Size
    Drill Bit Point
    Type
    Inner Inscribed
    Circle Dia.
    Outer Inscribed
    Circle Dia.
    Mfr.
    Each
    Each
    1 1/2"
    		1.5"
    		11 1/2"7 1/2"Round
    		1 1/2"Carbide Insert
    		0.486"0.498"Sandvik Coromant2769N340000000002780N1500000
     
    Drill Bit Inserts
    Image of Product. Front orientation. Drill Bit Inserts. Inner Inserts.
    Image of Product. Front orientation. Drill Bit Inserts. Outer Inserts.

    Inner Inserts

    Outer Inserts

    Image of Attribute. Inner Inserts. Front orientation. Contains Annotated, MultipleImages. Drill Bit Inserts. Inner Inserts.
    Image of Attribute. Outer Inserts. Front orientation. Contains Annotated, MultipleImages. Drill Bit Inserts. Outer Inserts.

    Inner Inserts

    Outer Inserts

    Each
    Package
    For Drill
    Bit Size
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Tip
    Radius
    For Use On
    Features
    Each
    Pkg.
    Qty.
    Pkg.
    Inner Inserts
     
    Titanium Aluminum Nitride (TiAlN)-Coated Carbide
    1 1/2", 1 5/8"0.486"5/32"3/16"1/32"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers2776N24000000102776N6640000000
     
    Outer Inserts
     
    Titanium Nitride (TiN)-Coated Carbide
    1 1/2", 1 5/8"0.498"5/32"3/16"3/64"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelChip Breakers2776N2500000102776N696000000
     

    DeWalt Three-Handle Electric Drills

    Image of Product. Front orientation. Drills. DeWalt Three-Handle Electric Drills.
    With a powerful motor, this drill has the strength for big drilling and mixing applications. Its top handle provides additional leverage and stability, and a rear D-handle makes it easy to carry. This model also has a variable speed motor—the further you depress the trigger, the faster the drill rotates.
    Keyed Chuck—Drills with keyed chuck can be tightened with the included key.
    Trigger Lock for Continuous Use—Drills with a trigger lock allow for continuous use without holding down the trigger.
    For Max. Bit
    Shank Size
    Max. No-Load Rotational
    Speed, rpm
    Chuck
    Type
    Chuck Key
    Included
    Current,
    amp
    Gear Housing
    Material
    Overall
    Lg.
    Wt.,
    lb.
    Mfr. Model
    No.
    Certification
    Features
    Each
    D-Handle and Pistol Grip
    1/2"550KeyedYes9Metal11 1/2"7.5DW130VCSA Certified, UL Listed
    		Trigger Lock for Continuous Use
    Removable Three-Position Top Handle
    Removable Two-Position Rear Handle    		28135A620000000
     

    Reamers

    Finish holes to precise inch, metric, wire gauge, or letter sizes with these reamers.
    Round Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers, Round Shank, Straight Flute.

    Straight Flute

    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers, Round Shank, Spiral Flute.

    Spiral Flute

    These reamers fit in the chuck of drill presses, turret lathes, and other machine and power tools, making them the most common shank type.
    Straight Flute—The most common flute style, these reamers are suitable for a wide range of applications, but not recommended for holes with a keyway or other breaks in the surface.
    Spiral Flute—Since these reamers clear chips better than straight flutes, they leave holes with a smoother finish. They're better for holes with breaks in the surface, such as a keyway, because they cut continuously across the breaks instead of moving in and out.
    High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
    Carbide-Tipped Tool Steel—Since these reamers retain a sharper, harder edge at higher temperatures than high-speed steel and cobalt steel, they can be used on hard materials, such as iron, hardened steel, and steel alloys. They aren't as brittle as solid carbide reamers, so they can be used in less rigid setups, such as a hand-held drill.
    Right-Hand Spiral—These reamers pull chips upward as they cut, so they're often used in blind holes.
    Lg.
    Reamer Dia.
    Material
    Flute
    Overall
    No. of
    Flutes
    Spiral
    Direction
    Cutting Dia.
    Tolerance
    For Use On
    Mfr.
    Each
    Straight Flute
     
    Inch
    1.2500" (1 1/4")High-Speed Steel
    		3"11 1/2"12—0" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelAlvord-Polk Tool2995A960000000
    1.2500" (1 1/4")Carbide-Tipped Tool Steel3"11 1/2"8—0" to 0.0003"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelRock River Tool3025A51000000
    1.3125" (1 5/16")High-Speed Steel
    		3"11 1/2"12—0" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelAlvord-Polk Tool2995A129000000
     
    Spiral Flute
     
    Inch
    1.2500" (1 1/4")High-Speed Steel
    		3"11 1/2"10Right Hand0.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelYankee3106A64000000
    1.3125" (1 5/16")High-Speed Steel
    		3"11 1/2"10Right Hand0.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelYankee3106A65000000
     
    Expandable Flutes, Round Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers, Expandable Flutes, Round Shank, Straight Flute.

    Straight Flute

    Unlike standard reamers, which are unusable once they become worn, these can be returned to their original size for finishing holes. After the reamer is worn down, tighten the set screw to expand the diameter, grind the reamer to its original size, and get back to work.
    These are not designed for producing holes larger than the listed diameter or for producing holes of various sizes. The set screw should not be loosened.
    These reamers fit in the chuck of drill presses, turret lathes, and other machine and power tools, making them the most common shank type.
    Straight Flute—The most common flute style, these reamers are suitable for a wide range of applications, but not recommended for holes with a keyway or other breaks in the surface.
    Carbide-Tipped Tool Steel—Since these reamers retain a sharper, harder edge at higher temperatures than high-speed steel and cobalt steel, they can be used on hard materials, such as iron, hardened steel, and steel alloys. They aren't as brittle as solid carbide reamers, so they can be used in less rigid setups, such as a hand-held drill.
    Lg.
    Reamer Dia.
    Material
    Flute
    Overall
    No. of
    Flutes
    Cutting Dia.
    Tolerance
    Recommended Expansion
    Limit
    For Use On
    Mfr.
    Each
    Straight Flute
     
    Inch
    1.2500" (1 1/4")Carbide-Tipped Tool Steel1 7/8"11 1/2"80" to 0.0003"0.013"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened SteelRock River Tool3107A360000000
     
    Morse Taper Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers, Morse Taper Shank, Straight Flute.

    Straight Flute

    These reamers work with machine tools that have a Morse taper-spindle hole, such as a drill press or lathe.
    Straight Flute—The most common flute style, these reamers are suitable for a wide range of applications, but not recommended for holes with a keyway or other breaks in the surface.
    High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
    Lg.
    Reamer Dia.
    Material
    Machine
    Taper No.
    Flute
    Overall
    No. of
    Flutes
    Cutting Dia.
    Tolerance
    For Use On
    Mfr.
    Each
    Straight Flute
     
    Inch
    1.2500" (1 1/4")High-Speed Steel
    		Morse 43"11 1/2"100.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelYankee2995A460000000
     

    Impact Wrench Reamers for Hole Alignment

    Driven by the high torque of an impact wrench, these reamers enlarge holes to correct misalignment and overlap faster than with a power drill. The tapered shape fits into narrow holes and makes more contact than straight reamers when removing material. Also known as bridge and car reamers.
    Hex Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Impact Wrench Reamers for Hole Alignment, Hex Shank, Helix Flute.

    Helix Flute

    Image of Product. Front orientation. Contains Annotated. Reamers. Impact Wrench Reamers for Hole Alignment, Hex Shank, Spiral Flute.

    Spiral Flute

    The shank fits hex impact sockets, so you can use an impact wrench to both ream the hole and install a fastener.
    Helix Flute—Prevent clogging when removing excess material with helix flutes. They also leave a smoother finish than straight flutes.
    Spiral Flute—Since these reamers clear chips better than straight flutes, they leave holes with a smoother finish. They're better for holes with breaks in the surface, such as a keyway, because they cut continuously across the breaks instead of moving in and out.
    High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
    Left-Hand Spiral—These reamers push chips downward as they cut, so they're often used in through holes.
    Strong Hold—Magnets on the shank’s end keep these reamers from accidentally falling out of your tool.
    Lg.
    Reamer Dia. (A)
    Reamer Dia.
    (B)
    Material
    Hex Shank
    Size
    Flute
    Overall
    Spiral
    Direction
    Cutting Dia.
    Tolerance
    Performance
    For Use On
    Mfr.
    Each
    Helix Flute
     
    Inch
    2.0000" (2")1.7500"High-Speed Steel
    		2"7 3/8"11 1/2"Left Hand0" to 0.01"Strong HoldAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelICS3239A1020000000
     
    Spiral Flute
     
    Inch
    1.7500" (1 3/4")1.3750"High-Speed Steel
    		1 1/4"7 3/8"11 1/2"Left Hand0" to 0.01"Strong HoldAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelICS3239A53000000
     
    back to top