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    4 Products

    Reamers
    3D CAD models available

    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

    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.
    High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
    Cobalt Steel—With better heat and wear resistance than high-speed steel, these reamers run up to 25% faster, last longer, and perform better on hard materials, such as cast iron, hardened steel, titanium, and stainless steel.
    Length
    Reamer
    Diameter
    Material
    Flute
    Overall
    Number
    of Flutes
    Cutting Diameter
    Tolerance
    For Use On
    Each
    Straight Flute
     
    Metric
    20.0000 mmHigh-Speed Steel63.5 mm241.3 mm80.0025 mm to 0.01 mmAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel8851A72$83.22
    20.0000 mmCobalt Steel63.5 mm241.3 mm80 mm to 0.005 mmAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel, Tool Steel, Hardened Steel2735A617140.15
     
    Square Shank
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers, Square Shank, Spiral Flute.

    Spiral Flute

    Turn these reamers by hand with an adjustable wrench or straight-handle tap wrench (sold separately).
    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.
    Length
    Reamer
    Diameter
    Material
    Square
    Shank
    Size
    Flute
    Overall
    Number
    of Flutes
    Spiral
    Direction
    Cutting Diameter
    Tolerance
    Specifications
    Met
    For Use On
    Each
    Spiral Flute
     
    Metric
    20.0000 mmHigh-Speed Steel16 mm100 mm201 mm8Left Hand0.009 mm to 0.017 mmDIN 206Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel2822A59$258.05
     

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

    Helical-Spiral Flute

    The shank fits hex impact sockets, so you can use an impact wrench to both ream the hole and install a fastener.
    Helical-Spiral Flute—Prevent clogging when removing excess material with helical-spiral 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.
    Secure Hold—Magnets on the shank’s end keep these reamers from accidentally falling out of your tool.
    Length
    Reamer Diameter
    (A)
    Reamer Diameter
    (B)
    Material
    Hex Shank
    Size
    Flute
    Overall
    Spiral
    Direction
    Cutting Diameter
    Tolerance
    For Use On
    Performance
    Each
    Helical-Spiral Flute
     
    Metric
    20.0000 mm11.9000 mmHigh-Speed Steel32 mm114 mm178 mmLeft Hand0 mm to 0.254 mmAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, SteelSecure Hold3239A215$88.71
     
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