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)
    31 Products

    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.
    Jobbers' Length—The same length as jobbers' drill bits, these reamers save setup time when you want to drill and ream on the same machine, such as a drill press or bench lathe.
    Sizes Included
    No. of
    Pieces
    Material
    Spiral
    Direction
    Lg.
    Class
    Container
    Type
    For Use On
    Each
    Straight Flute
     
    Inch
    1/16"-1/4" (Increments of 1/64")13High-Speed Steel—Jobbers
    		Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A10000000
    1/16"-1/2" (Increments of 1/64")29High-Speed Steel——Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A17000000
    1/16"-1/2" (Increments of 1/64")29High-Speed Steel——Wood CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A8000000
    1/16"-1/2" (Increments of 1/64")29High-Speed Steel—Jobbers
    		Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A2000000
    1/16"-1/2" (Increments of 1/32")15High-Speed Steel——Roll-Up PouchAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A24000000
     
    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, Steel3087A21000000
    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
     
    Metric
    1-7 mm (Increments of 0.5 mm)13High-Speed Steel——Wood CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A15000000
    1-13 mm (Increments of 0.5 mm)25High-Speed Steel——Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A16000000
     
    Wire Gauge
    61-8020High-Speed Steel——Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A5000000
    1-6060High-Speed Steel——Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A1300000000
    1-6060High-Speed Steel—Jobbers
    		Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A4000000
     
    Letter Size
    A-Z26High-Speed Steel—Jobbers
    		Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A3000000
     
    Spiral Flute
     
    Inch
    1/16"-1/2" (Increments of 1/64")29High-Speed SteelRight Hand—Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A9000000
    1/16"-1/2" (Increments of 1/32")15High-Speed SteelRight HandJobbers
    		Metal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3008A34000000
     
    Oversized/Undersized Fractional Inch
    0.126"-0.501" (Seven Oversized Reamers), 0.124"-0.499" (Seven Undersized Reamers)14High-Speed SteelRight Hand—Wood CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3087A23000000
    0.126"-0.501" (Seven Oversized Reamers), 0.124"-0.499" (Seven Undersized Reamers)14Cobalt SteelRight Hand—Wood CaseAluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel3087A25000000
     
    Adjustable Size, Square Shank
    Image of Product. Front orientation. Reamers. Reamer Sets, Adjustable Size, Square Shank.
    Work on a wide range of hole diameters by keeping a set of adjustable reamers on hand. Each reamer can finish multiple hole sizes by moving the adjustable blades within the diameter range. Convenient for maintenance work, these don't require powered tools. They're often used to make precise size adjustments during installation of bearings and bushings.
    Move the blades by tightening and loosening the two nuts on the reamer. To measure size, adjust blades to a known size (such as a bushing or ring), or measure across two opposite blades with a micrometer. When the blades become worn, they can be reground or replaced.
    Turn these reamers by hand with an adjustable wrench or straight-handle tap wrench (sold separately).
    Straight Blade—Use these reamers in straight holes that don't have a keyway or other breaks in the surface.
    Angled Blade—These reamers are better than those with straight blades for finishing holes with breaks in the surface, such as a keyway.
    High-Speed Steel—Durable and wear resistant, these are good for general purpose reaming in most materials.
    Tool Steel—Typically more economical but less durable than high-speed steel, these are for general purpose reaming.
    Sizes Included
    No. of
    Pieces
    Material
    Container
    Type
    For Use On
    Each
    Straight Blade
     
    Inch
    1/4"-15/32"7High-Speed SteelWood CaseAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium3141A79000000000
     
    Angled Blade
     
    Inch
    7/16"-1 1/4"10Tool SteelWood CaseAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium2987A9500000000
    15/32"-1 1/16"8Tool SteelWood CaseAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium2987A9100000000
    15/32"-1 17/32"11Tool SteelWood CaseAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, Titanium2987A9300000000
     

    Reamer Sets for Dowel-Pin Holes

    Finish holes to match standard fractional dowel pin sizes. These sets include two reamers for each size within the range listed. One reamer is slightly below the size while the other is slightly above the size, so you can choose how snug your dowel pin will fit in the hole.
    Round Shank
    Image of Product. Front orientation. Reamers. Reamer Sets for Dowel-Pin Holes, 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.
    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.
    Sizes Included
    No. of
    Pieces
    Material
    Container
    Type
    For Use On
    Each
    Straight Flute
     
    Inch
    1/8"-1/2" (Increments of 1/16", 2 of each)14High-Speed SteelMetal CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel3002A390000000
    1/8"-1/2" (Increments of 1/16", 2 of each)14Cobalt SteelMetal CaseAluminum, Brass, Bronze, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel, Hardened Steel3002A79000000
     

    Reamer Sets for Taper-Pin Holes

    Used for shaping holes to match the profile of taper pins, these sets include a variety of reamer sizes. Drill a hole that matches the size of the small end of the taper pin you want to install, and then ream to taper and finish the hole.
    Square Shank
    Image of Product. Front orientation. Reamers. Reamer Sets for Taper-Pin Holes, Square Shank.
    Turn these reamers by hand with an adjustable wrench, straight-handle tap wrench, or pin vise (sold separately).
    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.
    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.
    Sizes
    Included
    No. of
    Pieces
    Material
    Spiral
    Direction
    Rate of
    Taper
    Container
    Type
    For Use On
    Each
    Straight Flute
     
    Inch
    7/0-07High-Speed Steel—1:48Plastic CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel2990A670000000
    0-56High-Speed Steel—1:48Plastic CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel2990A72000000
    0-1011High-Speed Steel—1:48Plastic CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel2990A76000000
     
    Spiral Flute
     
    Inch
    7/0-07High-Speed SteelLeft Hand1:48Plastic CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel2990A69000000
    0-56High-Speed SteelLeft Hand1:48Plastic CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel2990A74000000
    0-1011High-Speed SteelLeft Hand1:48Plastic CaseAluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel2990A78000000
     

    Hole-Enlarging Reduced-Shank Drill Bit Sets

    Image of Product. Front orientation. Drill Bits. Hole-Enlarging Reduced-Shank Drill Bit Sets.
    An economical alternative to reamers, these sets include four bit sizes for enlarging existing drilled holes. Bits have four flutes that won’t catch on the inside of the hole like standard two-flute bits can, avoiding damage to the hole and your tool. The shank has a smaller diameter than the cutting tip, so you can ream large holes using tools that have small-capacity chucks. Sets also contain four hole-starting bits.
    Gold Oxide—Like black oxide, this finish adds wear resistance and reduces friction for improved chip flow. Because it’s less prone to flaking off, it offers better rust protection when bits aren't in use.
    No. of
    Pieces
    Drill Bit Sizes Included
    System of
    Measurement
    Container
    Type
    Each
    Gold Oxide
    81/4", 5/16", 25/64", and 15/32" Hole-Starting Bits,
    3/8", 1/2", 5/8", and 3/4" Hole-Enlarging Bits    		InchMetal Case30455A710000000
     
    back to top