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    9 Products

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

    Straight 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.
    Undersized Fractional—Undersized reamers are smaller than the fraction by 0.001" in diameter to create a tighter fit than standard sizes. They're typically used to press-fit a pin, bearing, or other object into a hole.
    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.
    Carbide—For the highest level of accuracy when cutting hard materials, these are our hardest, strongest, and most wear-resistant reamers. They're used on materials such as iron, hardened steel, steel alloys, and plastic. Their hardness means they are brittle, so a highly rigid setup, such as a CNC machine, is necessary to prevent the reamer from breaking.
    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
    Each
    Straight Flute
     
    Undersized Fractional Inch
    0.2490" (1/4" Undersized)High-Speed Steel1 1/2"6"6—0" to 0.0002"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3087A53000000
    0.2490" (1/4" Undersized)Cobalt Steel1 1/2"6"6—0" to 0.0002"Aluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel2791A5300000
    0.2490" (1/4" Undersized)Carbide1"3"4—0" to 0.0002"Aluminum, Brass, Bronze, Fiberglass, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel8307A47900000
     
    Spiral Flute
     
    Undersized Fractional Inch
    0.2490" (1/4" Undersized)High-Speed Steel1 1/2"6"6Right Hand0" to 0.0002"Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3087A9300000
     

    Reamer Sets

    Keep a variety of reamer sizes on hand for finishing holes.
    Round Shank
    Image of Product. Front orientation. Reamers. Reamer Sets, Round Shank.
    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.
    Oversized Fractional—Oversized reamers are larger than the fraction by 0.001" in diameter to create a looser fit than standard sizes. They're typically used in holes where objects such as pins need to stay in place, but still can be easily removed.
    Undersized Fractional—Undersized reamers are smaller than the fraction by 0.001" in diameter to create a tighter fit than standard sizes. They're typically used to press-fit a pin, bearing, or other object into a hole.
    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.
    Right-Hand Spiral—These reamers pull chips upward as they cut, so they're often used in blind holes.
    Sizes Included
    No. of
    Pieces
    Material
    Spiral
    Direction
    Container
    Type
    For Use On
    Each
    Straight Flute
     
    Oversized/Undersized Fractional Inch
    0.126"-0.501" (Seven Oversized Reamers), 0.124"-0.499" (Seven Undersized Reamers)14High-Speed Steel—Roll-Up PouchAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3087A210000000
    0.126"-0.501" (Seven Oversized Reamers), 0.124"-0.499" (Seven Undersized Reamers)14High-Speed Steel—Wood CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3087A22000000
    0.126"-0.501" (Seven Oversized Reamers), 0.124"-0.499" (Seven Undersized Reamers)14Cobalt Steel—Wood CaseAluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel3087A24000000
     
    Spiral Flute
     
    Oversized/Undersized Fractional Inch
    0.126"-0.501" (Seven Oversized Reamers), 0.124"-0.499" (Seven Undersized Reamers)14High-Speed SteelRight HandWood CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3087A23000000
    0.126"-0.501" (Seven Oversized Reamers), 0.124"-0.499" (Seven Undersized Reamers)14Cobalt SteelRight HandWood CaseAluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel3087A25000000
     
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