McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    36 Products

    Reamers for Taper-Pin Holes

    Shape holes to match the profile of taper pins. After drilling a hole that matches the size of the small end of the taper pin you want to install, use these reamers to taper and finish the hole.
    Round Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers for Taper-Pin Holes, Round Shank, Helix Flute.

    Helix 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.
    Helix Flute—Prevent clogging when removing excess material with helix flutes. They also leave a smoother finish than straight flutes.
    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.
    For Taper
    Pin No.
    Reamer Dia.
    (A)
    Reamer Dia.
    (B)
    Material
    Flute
    Overall
    No. of
    Flutes
    Spiral
    Direction
    Cutting Dia.
    Tolerance
    Rate of
    Taper
    For Use On
    Each
    Helix Flute
     
    Inch
    7/00.0666"0.0497"High-Speed Steel13/16"1 13/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    6/00.0806"0.0611"High-Speed Steel15/16"1 15/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    5/00.0966"0.0719"High-Speed Steel1 3/16"2 3/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    4/00.1142"0.0869"High-Speed Steel1 5/16"2 5/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    3/00.1302"0.1029"High-Speed Steel1 5/16"2 5/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    2/00.1462"0.1137"High-Speed Steel1 9/16"2 9/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    00.1638"0.1287"High-Speed Steel1 11/16"2 15/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    10.1798"0.1447"High-Speed Steel1 11/16"2 15/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    20.2008"0.1605"High-Speed Steel1 15/16"3 3/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    30.2294"0.1813"High-Speed Steel2 5/16"3 11/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    40.2604"0.2071"High-Speed Steel2 9/16"4 1/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    50.2994"0.2409"High-Speed Steel2 13/16"4 5/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    60.3540"0.2773"High-Speed Steel3 11/16"5 7/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    70.4220"0.3297"High-Speed Steel4 7/16"6 5/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    80.5050"0.3971"High-Speed Steel5 3/16"7 3/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    90.6066"0.4805"High-Speed Steel6 1/16"8 5/16"3Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    100.7216"0.5799"High-Speed Steel6 13/16"9 5/16"4Left Hand-0.001" to 0.001"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    110.8780"0.7060"High-Speed Steel8 1/4"11 1/4"4Left Hand0" to 0.5"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    121.0500"0.8420"High-Speed Steel10"13 7/8"4Left Hand0" to 0.5"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    131.2590"1.0090"High-Speed Steel12"16"6Left Hand0" to 0.5"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    141.5420"1.2500"High-Speed Steel14"18 1/4"6Left Hand0" to 0.5"1:48Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000000
     

    Round-Shank Reamer Drill Bits for Taper-Pin Holes

    Image of Product. Front orientation. Contains Annotated. Reamer Drill Bits. Round-Shank Reamer Drill Bits for Taper-Pin Holes.
    Drill and ream holes for taper pins with the same tool. These tools have chip breakers on the cutting edge.
    Reamer
    Dia.
    Lg.
    For Taper
    Pin No.
    (A)
    (B)
    Flute
    Overall
    No. of
    Flutes
    Flute
    Type
    Spiral
    Direction
    Rate of
    Taper
    Point
    Angle
    For Use On
    Each
    High-Speed Steel
    2/00.1430"0.1013"2"3 1/4"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    3/00.1270"0.0879"1 7/8"3 1/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    4/00.1110"0.0772"1 5/8"2 7/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    5/00.0950"0.0664"1 3/8"2 5/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    00.1580"0.1137"2 1/8"3 3/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    10.1740"0.1245"2 3/8"3 3/4"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    20.1950"0.1325"3"4 3/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    30.2200"0.1575"3"4 1/2"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    40.2530"0.1775"3 5/8"5 1/4"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel000000000000
    50.2920"0.1983"4 1/2"6 1/4"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    60.3470"0.2455"4 7/8"6 7/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    70.4120"0.2818"6 1/4"8 1/2"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    80.5060"0.3600"7"9 3/4"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    90.6330"0.4638"8 1/8"11 3/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
    100.7600"0.5647"9 3/8"12 7/8"2SpiralRight Hand1:50118°Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel0000000000000
     
    back to top