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    5 Products

    Reamers

    Finish holes to precise inch, metric, wire gauge, or letter sizes with these reamers.
    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
    Each
    Straight Flute
     
    Inch
    1.7500" (1 3/4")Carbide-Tipped Tool Steel2 3/8"13 1/2"100" to 0.0003"0.015"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel00000000000000
     
    Arbor Mount, For Round Shank
    Image of System. Reamer and Arbor (Sold Separately). Front orientation. Reamers. Reamers, Arbor Mount, For Round Shank, Straight Flute.
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers, Arbor Mount, For Round Shank, Straight Flute.

    Reamer and Arbor (Sold

    Separately)

    Straight Flute

    Pair these reamers with a compatible arbor (sold separately) to mount to your drill press or other machine. This setup lets you ream larger holes than other shank types. They’re also known as shell reamers.
    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.
    Arbors
    Reamer Dia.
    Material
    Arbor Hole
    Dia.
    Flute
    Overall
    No. of
    Flutes
    Cutting Dia.
    Tolerance
    For Use On
    Each
    Each
    Straight Flute
     
    Inch
    1.7500" (1 3/4")High-Speed Steel1"2 3/4"3 1/2"12-0.0002" to 0.0006"Aluminum, Brass, Bronze, Iron, Stainless Steel, Steel, Tool Steel, Hardened Steel000000000000000000000000000
     

    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
    The shank fits hex impact sockets, so you can use an impact wrench to both ream the hole and install a fastener.
    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.
    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.
    Lg.
    Reamer Dia. (A)
    Reamer Dia.
    (B)
    Material
    Hex Shank
    Size
    Flute
    Overall
    Spiral
    Direction
    Cutting Dia.
    Tolerance
    Performance
    For Use On
    Each
    Spiral Flute
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers for Hole Alignment, Hex Shank, Spiral Flute.
     
    Inch
    1.7500" (1 3/4")1.3750"High-Speed Steel1 1/4"7 3/8"11 1/2"Left Hand0" to 0.01"Secure HoldAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel00000000000000
     
    Helical-Spiral Flute
    Image of Product. Front orientation. Contains Annotated. Reamers. Reamers for Hole Alignment, Hex Shank, Helical-Spiral Flute.
     
    Inch
    2.0000" (2")1.7500"High-Speed Steel2"7 3/8"11 1/2"Left Hand0" to 0.01"Secure HoldAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel00000000000000
     
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