McMaster-Carr logo
    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)
    40 Products

    Reamers

    Finish holes to precise inch, metric, wire gauge, or letter sizes with these reamers.
    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
    Each
    Straight Flute
     
    Inch
    0.5000" (1/2")High-Speed SteelMorse 12"8"60" to 0.0002"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.6250" (5/8")High-Speed SteelMorse 22 1/4"9"80" to 0.0003"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    0.7500" (3/4")High-Speed SteelMorse 22 1/2"9 1/2"80.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    0.8125" (13/16")High-Speed SteelMorse 22 1/2"9 1/2"80.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.8750" (7/8")High-Speed SteelMorse 22 5/8"10"80.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.0000" (1")High-Speed SteelMorse 32 3/4"10 1/2"80.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.0625" (1 1/16")High-Speed SteelMorse 32 3/4"10 1/2"80.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.1250" (1 1/8")High-Speed SteelMorse 32 7/8"11"80.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.1875" (1 3/16")High-Speed SteelMorse 32 7/8"11"100.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.2500" (1 1/4")High-Speed SteelMorse 43"11 1/2"100.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.3750" (1 3/8")High-Speed SteelMorse 43 1/4"12"100.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.5000" (1 1/2")High-Speed SteelMorse 43 1/2"12 1/2"100.0001" to 0.0004"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
     

    Reamers for Hole Alignment

    Enlarge holes to correct misalignment and overlap. Misaligned holes often have a narrow entry, so the tapered shape is easier to insert and makes more contact to remove the overlapping material. These are also known as bridge and car reamers.
    Morse Taper Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers for Hole Alignment, Morse Taper Shank, Spiral Flute.

    Spiral Flute

    These reamers work with machine tools that have a Morse taper-spindle hole, such as a drill press or lathe.
    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.
    Lg.
    Reamer Dia. (A)
    Reamer Dia.
    (B)
    Material
    Machine
    Taper No.
    Flute
    Overall
    Spiral
    Direction
    Cutting Dia.
    Tolerance
    For Use On
    Each
    Spiral Flute
     
    Inch
    0.3750" (3/8")0.2188"High-Speed SteelMorse 24 3/8"8 1/4"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.4375" (7/16")0.2500"High-Speed SteelMorse 24 3/8"8 1/4"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.5000" (1/2")0.2813"High-Speed SteelMorse 24"7 9/16"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.5000" (1/2")0.2813"High-Speed SteelMorse 25 1/8"9"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.5625" (9/16")0.3438"High-Speed SteelMorse 24"7 9/16"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.5625" (9/16")0.3438"High-Speed SteelMorse 25 1/8"9"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.6250" (5/8")0.3438"High-Speed SteelMorse 24 1/2"8 1/16"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.6250" (5/8")0.3750"High-Speed SteelMorse 26 1/8"10"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.6875" (11/16")0.3750"High-Speed SteelMorse 34 1/2"8 13/16"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.6875" (11/16")0.3906"High-Speed SteelMorse 37 1/8"11 3/4"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.7500" (3/4")0.4063"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.7500" (3/4")0.4063"High-Speed SteelMorse 37 3/8"12"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.8125" (13/16")0.4688"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.8125" (13/16")0.5000"High-Speed SteelMorse 37 3/8"12"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.8750" (7/8")0.4688"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.8750" (7/8")0.5625"High-Speed SteelMorse 37 3/8"12"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.9375" (15/16")0.5938"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    0.9375" (15/16")0.5938"High-Speed SteelMorse 37 3/8"12"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.0000" (1")0.5938"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.0000" (1")0.6875"High-Speed SteelMorse 37 3/8"12"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.0625" (1 1/16")0.6250"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.0625" (1 1/16")0.7500"High-Speed SteelMorse 37 3/8"12"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.1250" (1 1/8")0.6563"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.1250" (1 1/8")0.8125"High-Speed SteelMorse 37 3/8"12"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.2500" (1 1/4")0.7188"High-Speed SteelMorse 35"9 1/2"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.2500" (1 1/4")0.9375"High-Speed SteelMorse 47 3/8"13"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.3750" (1 3/8")1.0625"High-Speed SteelMorse 47 3/8"13"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    1.5000" (1 1/2")1.1875"High-Speed SteelMorse 47 3/8"13"Left Hand0" to 0.01"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
     
    back to top