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    102 Products

    Reamers

    Finish holes to precise inch, metric, wire gauge, or letter sizes with these reamers.
    Adjustable Size, Square Shank
    Finish multiple hole sizes with one reamer by moving the adjustable blades within the diameter range. Convenient for maintenance work, these have a large diameter range and 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).
    Extension pilots (not included) can be used in place of the end adjustment nut to align holes that are spaced far apart.
    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.
    Tool Steel—Typically more economical but less durable than high-speed steel, these are for general purpose reaming.
    Reamers
    Replacement Blades
    Optional
    Extension Pilots
    Reamer Dia.
    Material
    Square Shank
    Size
    Overall
    Lg.
    No. of
    Blades
    For Use On
    Mfr.
    Each
    Pkg.
    Qty.
    Pkg.
    Each
    Straight Blade
    Image of Product. Front orientation. Reamers. Reamers, Adjustable Size, Square Shank, Straight Blade.
     
    Inch
    2.1875" to 2.5625" (2 3/16" to 2 9/16")Tool Steel
    		1.2500"18"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A43000000062987A8300000003004A350000000
    2.5625" to 3.0000" (2 9/16" to 3")Tool Steel
    		1.4680"20"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A4400000062987A840000003004A38000000
     
    Angled Blade
    Image of Product. Front orientation. Reamers. Reamers, Adjustable Size, Square Shank, Angled Blade.
     
    Inch
    0.4219" to 0.4531" (27/64" to 29/64")Tool Steel
    		0.1870"5 3/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A2800000062987A68000003004A1100000
    0.4219" to 0.4688" (27/64" to 15/32")Tool Steel
    		0.1870"5 3/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A100000062987A5000003004A1100000
    0.4375" to 0.5000" (7/16" to 1/2")Tool Steel
    		0.1870"5 3/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A2900000062987A69000003004A1200000
    0.4688" to 0.5313" (15/32" to 17/32")Tool Steel
    		0.1870"5 5/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1100000062987A51000003004A1200000
    0.5000" to 0.5625" (1/2" to 9/16")Tool Steel
    		0.2180"5 5/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A300000062987A7000003004A1300000
    0.5313" to 0.5938" (17/32" to 19/32")Tool Steel
    		0.2180"5 5/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1200000062987A52000003004A1300000
    0.5625" to 0.6250" (9/16" to 5/8")Tool Steel
    		0.2640"5 7/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3100000062987A71000003004A1400000
    0.5938" to 0.6563" (19/32" to 21/32")Tool Steel
    		0.2810"6 5/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1300000062987A53000003004A1500000
    0.6250" to 0.6875" (5/8" to 11/16")Tool Steel
    		0.2810"6 5/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3200000062987A72000003004A1500000
    0.6563" to 0.7188" (21/32" to 23/32")Tool Steel
    		0.3120"6 7/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1400000062987A54000003004A1600000
    0.6875" to 0.7500" (11/16" to 3/4")Tool Steel
    		0.3120"6 7/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3300000062987A73000003004A1600000
    0.7188" to 0.7813" (23/32" to 25/32")Tool Steel
    		0.3430"7 1/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1500000062987A55000003004A1700000
    0.7500" to 0.8125" (3/4" to 13/16")Tool Steel
    		0.3430"7 1/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3400000062987A74000003004A1700000
    0.7813" to 0.8438" (25/32" to 27/32")Tool Steel
    		0.4060"7 1/2"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1600000062987A56000003004A1800000
    0.8125" to 0.8750" (13/16" to 7/8")Tool Steel
    		0.4060"7 1/2"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3500000062987A75000003004A1800000
    0.8438" to 0.9375" (27/32" to 15/16")Tool Steel
    		0.4370"8 1/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1700000062987A57000003004A1900000
    0.8750" to 1.0000" (7/8" to 1")Tool Steel
    		0.4370"8 1/8"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3600000062987A76000003004A1900000
    0.9375" to 1.0625" (15/16" to 1 1/16")Tool Steel
    		0.5000"9 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1800000062987A58000003004A2100000
    1.0000" to 1.1250" (1" to 1 1/8")Tool Steel
    		0.5000"9 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3700000062987A77000003004A2100000
    1.0625" to 1.1875" (1 1/16" to 1 3/16")Tool Steel
    		0.5310"10 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A1900000062987A59000003004A2300000
    1.1250" to 1.2500" (1 1/8" to 1 1/4")Tool Steel
    		0.5490"10 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3800000062987A78000003004A2400000
    1.1875" to 1.3438" (1 3/16" to 1 11/32")Tool Steel
    		0.6250"11 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A200000062987A60000003004A25000000
    1.2500" to 1.4375" (1 1/4" to 1 7/16")Tool Steel
    		0.6250"11 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A3900000062987A790000003004A25000000
    1.3438" to 1.5313" (1 11/32" to 1 17/32")Tool Steel
    		0.6400"12"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A2100000062987A610000003004A27000000
    1.4375" to 1.6250" (1 7/16" to 1 5/8")Tool Steel
    		0.7500"12"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A400000062987A80000003004A28000000
    1.5313" to 1.7813" (1 17/32" to 1 25/32")Tool Steel
    		0.7500"14 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A2200000062987A620000003004A29000000
    1.6250" to 1.8750" (1 5/8" to 1 7/8")Tool Steel
    		0.8750"14 1/4"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A4100000062987A810000003004A31000000
    1.7813" to 2.0938" (1 25/32" to 2 3/32")Tool Steel
    		0.9370"16"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A2300000062987A630000003004A32000000
    1.8750" to 2.1875" (1 7/8" to 2 3/16")Tool Steel
    		1.0320"16"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A4200000062987A820000003004A66000000
    2.0938" to 2.4688" (2 3/32" to 2 15/32")Tool Steel
    		1.1870"18"6Aluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A2400000062987A640000003004A36000000
     

    Reamer Sets

    Keep a variety of reamer sizes on hand for finishing holes.
    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).
    Angled Blade—These reamers are better than those with straight blades for finishing holes with breaks in the surface, such as a keyway.
    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
    Mfr.
    Each
    Angled Blade
     
    Inch
    7/16"-1 1/4"10Tool Steel
    		Wood CaseAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A95000000000
    15/32"-1 1/16"8Tool Steel
    		Wood CaseAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A9100000000
    15/32"-1 17/32"11Tool Steel
    		Wood CaseAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen2987A9300000000
     

    Hole-Enlarging Reduced-Shank Drill Bits

    Image of Product. Front orientation. Drill Bits. Hole-Enlarging Reduced-Shank Drill Bits.
    A simple way to enlarge an existing drilled hole, these bits are an economical alternative to reamers. They 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 standard-size chucks.
    Black/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.
    Drill Bit
    Size
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank Type
    Mfr.
    Each
     
    Black/Gold Oxide
    3/8"
    		4.31"1.75"Reduced Round
    		Viking Norseman Drill30455A61000000
    1/2"
    		4.31"1.75"Reduced Round
    		Viking Norseman Drill30455A6200000
    9/16"
    		4.31"1.75"Reduced Round
    		Viking Norseman Drill30455A6300000
    5/8"
    		4.31"1.75"Reduced Round
    		Viking Norseman Drill30455A6400000
    11/16"
    		4.31"1.75"Reduced Round
    		Viking Norseman Drill30455A6500000
    3/4"
    		4.31"1.75"Reduced Round
    		Viking Norseman Drill30455A6600000
     

    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.
    Adjustable Size, Square Shank
    Image of Product. Front orientation. Reamers. Reamers for Hole Alignment, Adjustable Size, Square Shank, Angled Blade.

    Angled Blade

    One tool both finishes multiple diameters and enlarges holes to correct misalignment and overlap. Also known as bridge and car reamers, they have a tapered shape that fits into the narrow entry of misaligned holes and makes more contact to remove the overlapping material. Change the reamer size by moving the adjustable blades within the diameter range.
    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).
    Angled Blade—These reamers are better than those with straight blades for finishing holes with breaks in the surface, such as a keyway.
    Tool Steel—Typically more economical but less durable than high-speed steel, these are for general purpose reaming.
    Long Reach—Align holes spaced far apart with reamers that have a long, built-in pilot. A floating sleeve guides and steadies the pilot through holes.
    Reamers
    Replacement Blades
    Lg.
    Reamer Dia.
    Material
    Square Shank
    Size
    Pilot
    Overall
    No. of
    Blades
    Performance
    For Use On
    Mfr.
    Each
    Pkg.
    Qty.
    Pkg.
    Angled Blade
     
    Inch
    0.4688" to 0.5313" (15/32" to 17/32")Tool Steel
    		0.1870"10"15 5/8"6Long ReachAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen3027A11000000062987A51000000
    0.5313" to 0.5938" (17/32" to 19/32")Tool Steel
    		0.2180"10"15 5/8"6Long ReachAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen3027A1200000062987A5200000
    0.5938" to 0.6563" (19/32" to 21/32")Tool Steel
    		0.2810"12"18 5/8"6Long ReachAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen3027A1300000062987A5300000
    0.7188" to 0.7813" (23/32" to 25/32")Tool Steel
    		0.3430"16"23 1/8"6Long ReachAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen3027A1500000062987A5500000
    0.7813" to 0.8438" (25/32" to 27/32")Tool Steel
    		0.4060"16"23 1/2"6Long ReachAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen3027A1600000062987A5600000
    0.9375" to 1.0625" (15/16" to 1 1/16")Tool Steel
    		0.5000"18"27 1/8"6Long ReachAluminum, Brass, Bronze, Fiberglass, Iron, Plastic, Steel, TitaniumChadwick & Trefethen3027A1800000062987A5800000
     

    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.
    Black/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
    Mfr.
    Each
    Black/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 CaseViking Norseman Drill30455A710000000
     
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