Reamers

Reamers

Made in USA since 1992

Common reamer types

Chucking Reamers
Chucking Reamers The workhorse — machine reaming to size HSS, cobalt or carbide Best for Finishing drilled or bored holes to tolerance
Dowel Pin Reamers
Dowel Pin Reamers Sized for standard dowel pin fits HSS or cobalt Best for Tooling, fixturing and mold alignment
Expansion Reamers
Expansion Reamers Screw expands the head to restore size Straight or taper shank Best for Long service where regrinding pays
Hand Reamers
Hand Reamers Turned by hand, not under power Straight flute or left-hand spiral Best for Fitting, repair and toolroom work
Taper Pin Reamers
Taper Pin Reamers Cuts the taper for standard taper pins Straight, LH spiral or LH helical Best for Pinning gears and pulleys to shafts

Specialty reamers

HSS Safety Reamers LH Spiral
HSS Safety Reamers LH Spiral Hex shank, 1-1/16 to 2 inch Tapered point enters misaligned holes Best for Heavy structural steel assembly
HSS Capscrew Counterbores
HSS Capscrew Counterbores Flat-bottomed seat for a socket head Built-in pilot holds alignment Best for Recessing capscrews flush or below surface
HSS Bridge Reamers LH Spiral
HSS Bridge Reamers LH Spiral Taper shank with a pilot point Left-hand spiral, right-hand cut Best for Aligning bolt holes in structural steel
HSS Construction Reamers LH Spiral
HSS Construction Reamers LH Spiral Flatted shank, black and gold oxide Left-hand spiral, right-hand cut Best for Bolt clearance holes in beams and chassis
HSS Taper Pipe
HSS Taper Pipe Reams the taper before pipe tapping 6 to 12 flute options Best for Dryseal and ANPT thread preparation

Atlas Cutting Tools carries one of the most complete ranges of reamers in the industry. Shop Chucking Reamers (straight flute and spiral flute, in HSS, Cobalt, and Carbide), Dowel Pin Reamers, Expansion Reamers, Hand Reamers, Taper Pin Reamers, and specialty items like Bridge Reamers, Capscrew Counterbores, Construction Reamers, Safety Reamers, and Taper Pipe Reamers.

Reamers are precision-ground for tight tolerance hole finishing after drilling or boring, and material choice matters: HSS suits general-purpose work, Cobalt holds up better in stainless and tougher alloys, and Carbide delivers the longest tool life in high-volume production. All reamers are USA manufactured, and most sizes ship the same day with a 97% fill rate.

  • Compare SKU Vendor Size (D1) Decimal Equivalent (D1) Flute Diameter (D1) Shank Diameter (D2) Pilot Length (L2) Pilot Diameter (D3) Flute Length (L2) Overall Length (L1) Total Reach (L3) Axial Chamfer Morse Taper Small Diameter Large Diameter Body Length (L3) Size of Square Hex Shank Diameter Number of Flutes Coating In Stock Price Quantity
    A50153 ACT 0.0440 0.0390 3/8 1-1/2 0.0000 0.0100 4 Uncoated 15
    $34.73
  • A78795 ACT #59 0.041 0.039 1/2 2-1/2 4 Uncoated 11
    $23.83
  • A78674 ACT 1/8 0.125 0.125 5/8 2-1/4 4 Uncoated 9
    $31.45
  • A53801 ACT 3/4 0.9620 0.9063 1-3/8 3-1/4 0.8760 0.962 .6790 8 Uncoated 15
    $142.62
  • A53758 ACT 9/64 0.1406 0.1406 1-5/8 3-1/4 4 Uncoated 11
    $48.61
  • A53747 ACT 11/16 0.6875 1/2 4-1/2 6-3/8 5 Black & Gold 100
    $91.37
  • A53738 ACT 3/4 0.7500 7-3/8 12 3 0.5000 5 Uncoated 19
    $138.45
  • A53720 ACT #2/0 0.1462 5/32 1-9/16 2-9/16 0.1137 0.1462 4 Uncoated 1
    $34.27
  • A53699 ACT #2/0 0.1462 5/32 1-9/16 2-9/16 0.1137 0.1462 4 Uncoated 12
    $44.82
  • A53678 ACT #2/0 0.1462 5/32 1-9/16 2-9/16 0.1137 0.1462 4 Uncoated 10
    $43.92
  • A53660 ACT #5 0.237 5/32 .1560 4-1/8 5/8 Uncoated 12
    $31.96
  • A53593 ACT 9/64 0.1406 0.1406 1-5/8 3-1/4 4 Uncoated Available to Order*
    $25.90
  • A53527 ACT 17/32 0.5313 7/16 1 8 6 Uncoated Available to Order*
    $100.24
  • A53337 ACT 0.2495 0.2495 0.2405 1-1/2 6 6 Uncoated 23
    $30.80
  • A53323 ACT 0.2495 0.2495 0.2405 1-1/2 6 6 Uncoated 15
    $27.96
  • A52963 ACT #56 0.0465 0.0455 1/2 2-1/2 4 Uncoated 7
    $25.03
  • A52949 ACT 0.2495 0.2495 0.2405 1-1/2 6 6 Uncoated 30
    $26.80
  • A52751 ACT #76 0.0200 0.02 3/8 7/8 2 Uncoated 14
    $28.91
  • A52722 ACT 0.2495 0.2495 0.2405 1-1/2 6 6 Uncoated 39
    $25.28
  • A52459 ACT #76 0.0200 0.02 3/8 7/8 2 Uncoated 16
    $26.03
  • A50154 ACT 0.0450 0.0400 3/8 1-1/2 0.0000 0.0100 4 Uncoated 16
    $34.73
  • A78675 ACT 9/64 0.1406 0.1406 3/4 2-1/2 4 Uncoated 16
    $35.67
  • A53759 ACT 5/32 0.1563 0.1562 1-5/8 3-1/4 4 Uncoated 12
    $52.50
  • A53748 ACT 3/4 0.7500 1/2 4-1/2 6-7/8 5 Black & Gold 24
    $96.48
  • A53739 ACT 13/16 0.8125 7-3/8 12 3 0.5000 5 Uncoated 21
    $138.04
  • A53721 ACT #0 0.1638 11/64 1-11/16 2-15/16 0.1287 0.1638 4 Uncoated 15
    $32.53
  • A53700 ACT #0 0.1638 11/64 1-11/16 2-15/16 0.1287 0.1638 4 Uncoated 2
    $32.94
  • A53679 ACT #0 0.1638 11/64 1-11/16 2-15/16 0.1287 0.1638 4 Uncoated 20
    $42.43
  • A53633 ACT #6 0.227 3/16 .1380 4-5/8 3/4 Uncoated 11
    $33.69
  • A53561 ACT 9/16 0.5625 1-1/8 8 1 6 Uncoated 4
    $105.88
  • A53528 ACT 9/16 0.5625 7/16 1-1/8 8 6 Uncoated 8
    $134.96
  • A53338 ACT 0.3105 0.3105 0.2792 1-1/2 6 6 Uncoated 12
    $40.54
  • A53324 ACT 0.3105 0.3105 0.2792 1-1/2 6 6 Uncoated 10
    $32.74
  • A52964 ACT 3/64 0.0469 0.0455 1/2 2-1/2 4 Uncoated 10
    $25.03
  • A52950 ACT 0.3105 0.3105 0.2792 1-1/2 6 6 Uncoated 9
    $27.88
  • A52752 ACT #75 0.0210 0.021 1/2 1 3 Uncoated 15
    $28.91
  • A52723 ACT 0.3105 0.3105 0.2792 1-1/2 6 6 Uncoated 19
    $29.69
  • A52460 ACT #75 0.0210 0.021 1/2 1 3 Uncoated 11
    $25.94
  • A50155 ACT 0.0460 0.0410 3/8 1-1/2 0.0000 0.0100 4 Uncoated 7
    $34.73
  • A78796 ACT #58 0.042 0.039 1/2 2-1/2 4 Uncoated 22
    $23.83
  • A78676 ACT 5/32 0.1563 0.1563 3/4 2-1/2 4 Uncoated 18
    $37.60
  • A53851 ACT 7/8 0.8750 7-3/8 12 3 0.5625 5 Uncoated 17
    $150.70
  • A53760 ACT 11/64 0.1719 0.1719 1-3/4 3-1/2 6 Uncoated 10
    $52.50
  • A53749 ACT 13/16 0.8125 1/2 4-1/2 6-7/8 5 Black & Gold 19
    $96.48
  • A53722 ACT #1 0.1798 3/16 1-11/16 2-15/16 0.1447 0.1798 6 Uncoated 5
    $32.94
  • A53701 ACT #1 0.1798 3/16 1-11/16 2-15/16 0.1447 0.1798 6 Uncoated 12
    $33.57
  • A53680 ACT #1 0.1798 3/16 1-11/16 2-15/16 0.1447 0.1798 6 Uncoated 12
    $29.61
  • A53647 ACT #6 0.243 3/16 .1530 4-5/8 3/4 Uncoated 16
    $33.69
  • A53595 ACT 11/64 0.1719 0.1719 1-3/4 3-1/2 6 Uncoated Available to Order*
    $27.66
  • A53529 ACT 19/32 0.5938 7/16 1-1/8 8 6 Uncoated 15
    $136.94
  • A53339 ACT 0.312 0.312 0.2792 1-1/2 6 6 Uncoated 18
    $39.91
  • A53325 ACT 0.312 0.312 0.2792 1-1/2 6 6 Uncoated 15
    $32.86
  • A52965 ACT #55 0.0520 0.051 1/2 2-1/2 4 Uncoated 11
    $25.03
  • A52951 ACT 0.312 0.312 0.2792 1-1/2 6 6 Uncoated 60
    $38.56
  • A52753 ACT #74 0.0225 0.0225 1/2 1 3 Uncoated 12
    $28.91
  • A52724 ACT 0.312 0.312 0.2792 1-1/2 6 6 Uncoated 24
    $29.69
  • A52461 ACT #74 0.0225 0.0225 1/2 1 3 Uncoated 12
    $26.03
  • A51512 ACT 0.014 0.0135 3/8 3/4 2 Uncoated 17
    $32.41
  • A50156 ACT #56 0.0465 0.0420 3/8 1-1/2 0.0000 0.0100 4 Uncoated 100
    $32.90
  • A78677 ACT 11/64 0.1719 0.1719 7/8 2-3/4 4 Uncoated 23
    $42.13
  • A53761 ACT 3/16 0.1875 0.1875 1-3/4 3-1/2 6 Uncoated 17
    $51.83
  • A53750 ACT 7/8 0.8750 1/2 4-1/2 6-7/8 5 Black & Gold 100
    $108.94
  • A53740 ACT 15/16 0.9375 7-3/8 12 3 0.6250 5 Uncoated 80
    $160.38
  • A53723 ACT #2 0.2008 13/64 1-15/16 3-3/16 0.1605 0.2008 6 Uncoated 16
    $45.73
  • A53681 ACT #2 0.2008 13/64 1-15/16 3-3/16 0.1605 0.2008 6 Uncoated 21
    $40.91
  • A53661 ACT #6 0.259 3/16 .1690 4-5/8 3/4 Uncoated 9
    $33.69
  • A53596 ACT 3/16 0.1875 0.1875 1-3/4 3-1/2 6 Uncoated Available to Order*
    $26.13
  • A53563 ACT 5/8 0.6250 1-1/4 9 2 6 Uncoated 7
    $114.09
  • A53530 ACT 5/8 0.6250 9/16 1-1/4 9 6 Uncoated 13
    $140.89
  • A53340 ACT 0.373 0.373 0.3105 1-3/4 7 6 Uncoated 10
    $43.62
  • A53326 ACT 0.373 0.373 0.3105 1-3/4 7 6 Uncoated 13
    $35.38
  • A53142 ACT #54 0.0510 0.051 1/2 2-1/2 4 Uncoated 16
    $27.54
  • A52966 ACT #54 0.0550 0.051 1/2 2-1/2 4 Uncoated 17
    $25.03
  • A52952 ACT 0.373 0.373 0.3105 1-3/4 7 6 Uncoated 16
    $42.01
  • A52754 ACT #73 0.0240 0.024 1/2 1-1/8 3 Uncoated 7
    $28.91
  • A52725 ACT 0.373 0.373 0.3105 1-3/4 7 6 Uncoated 9
    $32.29
  • A52462 ACT #73 0.0240 0.024 1/2 1-1/8 3 Uncoated 21
    $26.03
  • A51513 ACT 0.015 0.0156 3/8 3/4 2 Uncoated 10
    $32.33
  • A50157 ACT 3/64 0.0469 0.0420 3/8 1-1/2 0.0000 0.0100 4 Uncoated 23
    $31.39
  • A78797 ACT #57 0.043 0.039 1/2 2-1/2 4 Uncoated 2
    $23.83
  • A78678 ACT 3/16 0.1875 0.1875 7/8 2-3/4 4 Uncoated 8
    $42.13
  • A53852 ACT 1 1.0000 7-3/8 12 3 0.6875 5 Uncoated 17
    $174.20
  • A53762 ACT 13/64 0.2031 0.2031 1-7/8 3-3/4 6 Uncoated 6
    $51.67
  • A53751 ACT 15/16 0.9375 1/2 4-1/2 6-7/8 5 Black & Gold 49
    $108.94
  • A53724 ACT #3 0.2294 15/64 2-15/16 3-11/16 0.1813 0.2294 6 Uncoated 8
    $45.73
  • A53682 ACT #3 0.2294 15/64 2-15/16 3-11/16 0.1813 0.2294 6 Uncoated 16
    $40.91
  • A53634 ACT #8 0.27 7/32 .1640 5 3/4 Uncoated 10
    $36.12
  • A53597 ACT 13/64 0.2031 0.2031 1-7/8 3-3/4 6 Uncoated Available to Order*
    $30.92
  • A53531 ACT 21/32 0.6563 9/16 1-1/4 9 6 Uncoated 5
    $108.98
  • A53341 ACT 0.3745 0.3745 0.3105 1-3/4 7 6 Uncoated 18
    $43.62
  • A53327 ACT 0.3745 0.3745 0.3105 1-3/4 7 6 Uncoated 8
    $35.38
  • A53143 ACT 1.5mm 0.0510 0.051 1/2 2-1/2 4 Uncoated 22
    $27.54
  • A52967 ACT 1.5mm 0.0591 0.051 1/2 2-1/2 4 Uncoated 9
    $25.03
  • A52953 ACT 0.3745 0.3745 0.3105 1-3/4 7 6 Uncoated 16
    $42.01
  • A52755 ACT #72 0.0250 0.025 1/2 1-1/8 3 Uncoated 16
    $28.91
  • A52726 ACT 0.3745 0.3745 0.3105 1-3/4 7 6 Uncoated 61
    $32.29
  • A52463 ACT #72 0.0250 0.025 1/2 1-1/8 3 Uncoated 19
    $26.03
  • A51514 ACT 0.0155 0.0156 3/8 3/4 2 Uncoated 10
    $32.33
  • A50158 ACT 0.0470 0.0420 3/8 1-1/2 0.0000 0.0100 4 Uncoated 21
    $34.73
  • A78679 ACT 13/64 0.2031 0.2031 1 3 4 Uncoated 30
    $50.97

* Lead times can vary from 1–10 business days. Call (908) 98-ATLAS or email sales@atlascuttingtools.com for details.

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