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
    A52624 ACT 12.5mm 0.4921 0.4355 2 8 6 Uncoated 13
    $42.96
  • A51675 ACT 0.1195 0.112 7/8 3-1/2 4 Uncoated 21
    $20.54
  • A50319 ACT 0.1710 0.1710 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $55.29
  • A78712 ACT D 0.246 0.2329 1-1/2 6 6 Uncoated 11
    $32.20
  • A53129 ACT 1-1/4 1.2500 0.999 3 11-1/2 8 Uncoated 13
    $196.18
  • A52917 ACT 0.499 O/U 0.4990 0.4355 2 8 6 Uncoated 17
    $67.46
  • A52625 ACT 0.499 O/U 0.4990 0.4355 2 8 6 Uncoated 55
    $40.90
  • A51676 ACT 0.1205 0.119 7/8 3-1/2 4 Uncoated 20
    $20.54
  • A50320 ACT 11/64 0.1719 0.1719 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 14
    $49.73
  • A53130 ACT 1-5/16 1.3125 0.999 3 11-1/2 10 Uncoated 5
    $229.32
  • A52918 ACT 1/2 0.5000 0.4355 2 8 6 Uncoated 27
    $67.46
  • A52626 ACT 1/2 0.5000 0.4355 2 8 6 Uncoated 68
    $40.90
  • A51677 ACT 0.121 0.119 7/8 3-1/2 4 Uncoated 14
    $20.54
  • A50321 ACT 0.1720 0.1720 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 9
    $55.29
  • A78713 ACT .249 O/U 0.249 0.2405 1-1/2 6 6 Uncoated 8
    $34.26
  • A53131 ACT 1-3/8 1.3750 0.999 3-1/4 12 10 Uncoated 13
    $240.49
  • A52919 ACT 0.501 O/U 0.5010 0.4355 2 8 6 Uncoated 17
    $67.46
  • A52627 ACT 0.501 O/U 0.5010 0.4355 2 8 6 Uncoated 100
    $40.90
  • A51678 ACT 0.1215 0.119 7/8 3-1/2 4 Uncoated 28
    $20.54
  • A50322 ACT #17 0.1730 0.1730 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 20
    $51.32
  • A52920 ACT 17/32 0.5313 0.4355 2 8 6 Uncoated 32
    $75.82
  • A52628 ACT 13.0mm 0.5118 0.4355 2 8 6 Uncoated 29
    $53.48
  • A51679 ACT 0.122 0.119 7/8 3-1/2 4 Uncoated 21
    $20.54
  • A50323 ACT 0.1740 0.1740 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $55.29
  • A53133 ACT 1-1/2 1.5000 1.249 3-1/2 12-1/2 10 Uncoated Available to Order*
    $276.49
  • A52921 ACT 9/16 0.5625 0.4355 2 8 8 Uncoated 17
    $75.82
  • A52629 ACT 33/64 0.5156 0.4355 2 8 6 Uncoated 17
    $53.48
  • A51680 ACT 0.1225 0.119 7/8 3-1/2 4 Uncoated 24
    $20.54
  • A50324 ACT 0.1750 0.1750 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $55.29
  • A78714 ACT .251 O/U 0.251 0.2405 1-1/2 6 6 Uncoated 7
    $34.26
  • A53302 ACT 1-9/16 1.5625 1.249 3-1/2 13 12 Uncoated 13
    $394.32
  • A52922 ACT 19/32 0.5938 0.4355 2 8 8 Uncoated 8
    $75.82
  • A52630 ACT 17/32 0.5312 0.4355 2 8 6 Uncoated 23
    $50.79
  • A51681 ACT 0.123 0.119 7/8 3-1/2 4 Uncoated 22
    $20.54
  • A50325 ACT 0.1760 0.1760 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 20
    $55.29
  • A53303 ACT 1-5/8 1.6250 1.249 3-1/2 13 12 Uncoated 12
    $396.38
  • A52923 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 18
    $88.45
  • A52631 ACT 13.5mm 0.5315 0.4355 2 8 6 Uncoated 19
    $53.48
  • A51682 ACT 0.1235 0.119 7/8 3-1/2 4 Uncoated 22
    $20.54
  • A50326 ACT #16 0.1770 0.1770 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 22
    $51.32
  • A78715 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 23
    $32.04
  • A52924 ACT 21/32 0.6563 0.5615 2-1/4 9 8 Uncoated 18
    $101.96
  • A52632 ACT 35/64 0.5469 0.4355 2 8 8 Uncoated 14
    $53.48
  • A51683 ACT 0.1245 0.119 7/8 3-1/2 4 Uncoated 100
    $20.54
  • A50327 ACT 4.5mm 0.1772 4.500 7/8 2-3/4 38mm 0.0220 4 Uncoated 11
    $57.47
  • A53305 ACT 1-3/4 1.7500 1.249 4 13-1/2 12 Uncoated 11
    $455.06
  • A52925 ACT 11/16 0.6875 0.5615 2-1/4 9 8 Uncoated 14
    $101.64
  • A52633 ACT 14.0mm 0.5512 0.4355 2 8 8 Uncoated 37
    $53.48
  • A51684 ACT 0.1247 0.119 7/8 3-1/2 4 Uncoated 23
    $20.54
  • A50328 ACT 0.1780 0.1780 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $55.29
  • A78716 ACT F 0.257 0.2485 1-1/2 6 6 Uncoated 14
    $32.20
  • A53306 ACT 1-13/16 1.8125 1.499 4 14 12 Uncoated 11
    $524.11
  • A52926 ACT 23/32 0.7188 0.5615 2-1/4 9 8 Uncoated 13
    $113.60
  • A52634 ACT 0.5615 O/U 0.5615 0.4355 2 8 8 Uncoated 7
    $53.48
  • A51685 ACT 0.1255 0.119 7/8 3-1/2 4 Uncoated 68
    $27.70
  • A50329 ACT 0.1790 0.1790 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 9
    $55.29
  • A52927 ACT 3/4 0.7500 0.624 2-1/2 9 8 Uncoated 5
    $113.54
  • A52635 ACT 9/16 0.5625 0.4355 2 8 8 Uncoated 22
    $50.79
  • A51686 ACT 0.1265 0.119 7/8 3-1/2 4 Uncoated 31
    $27.70
  • A50330 ACT #15 0.1800 0.1800 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 23
    $51.32
  • A78717 ACT G 0.261 0.2485 1-1/2 6 6 Uncoated 16
    $32.04
  • A53308 ACT 1-15/16 1.9375 1.499 4 14 12 Uncoated 11
    $613.62
  • A52928 ACT 25/32 0.7813 0.624 2-1/2 9 8 Uncoated 5
    $122.79
  • A52636 ACT 0.5635 O/U 0.5635 0.4355 2 8 8 Uncoated 19
    $53.48
  • A51687 ACT 0.127 0.119 7/8 3-1/2 4 Uncoated 82
    $27.70
  • A50331 ACT 0.1810 0.1810 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $55.29
  • A53309 ACT 2 2.0000 1.499 4 14 12 Uncoated 11
    $613.62
  • A52929 ACT 13/16 0.8125 0.624 2-1/2 9 8 Uncoated 18
    $122.00
  • A52637 ACT 14.5mm 0.5709 0.4355 2 8 8 Uncoated 11
    $53.48
  • A51688 ACT 0.1275 0.119 7/8 3-1/2 4 Uncoated 22
    $27.70
  • A50332 ACT #14 0.1820 0.1820 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 15
    $51.32
  • A52930 ACT 27/32 0.8438 0.624 2-1/2 9-1/2 8 Uncoated 13
    $145.21
  • A52638 ACT 37/64 0.5781 0.4355 2 8 8 Uncoated 11
    $53.48
  • A51689 ACT 0.128 0.119 7/8 3-1/2 4 Uncoated 51
    $27.70
  • A50333 ACT 0.1830 0.1830 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 13
    $55.29
  • A78718 ACT H 0.266 0.2485 1-1/2 6 6 Uncoated 9
    $35.71
  • A52931 ACT 7/8 0.8750 0.749 2-5/8 10 8 Uncoated 5
    $148.63
  • A52639 ACT 15.0mm 0.5906 0.4355 2 8 8 Uncoated 17
    $53.48
  • A51690 ACT 0.129 0.1275 1 4 4 Uncoated 64
    $27.70
  • A50334 ACT 0.1840 0.1840 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $55.29
  • A52932 ACT 29/32 0.9063 0.749 2-5/8 10 8 Uncoated 11
    $159.89
  • A52640 ACT 19/32 0.5938 0.4355 2 8 8 Uncoated 20
    $50.79
  • A51691 ACT 0.1295 0.1275 1 4 4 Uncoated 18
    $27.70
  • A50335 ACT #13 0.1850 0.1850 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 7
    $51.32
  • A78719 ACT I 0.272 0.2485 1-1/2 6 6 Uncoated 12
    $35.71
  • A52933 ACT 15/16 0.9375 0.749 2-5/8 10 8 Uncoated 15
    $159.31
  • A52641 ACT 39/64 0.6094 0.5615 2-1/4 9 8 Uncoated 20
    $62.51
  • A51692 ACT 0.13 0.1275 1 4 4 Uncoated 44
    $27.70
  • A50336 ACT 0.1855 0.1855 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $66.13
  • A52934 ACT 31/32 0.9688 0.749 2-5/8 10 8 Uncoated 4
    $178.94
  • A52642 ACT 15.5mm 0.6102 0.5615 2-1/4 9 8 Uncoated 16
    $62.51
  • A51693 ACT 0.1305 0.1275 1 4 4 Uncoated 20
    $27.70
  • A50337 ACT 0.1860 0.1860 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $55.29
  • A78720 ACT 7.0mm 0.2756 0.2485 1-1/2 6 6 Uncoated 11
    $35.71
  • A52935 ACT 1 1.0000 0.874 2-3/4 10-1/2 8 Uncoated 16
    $180.92
  • A52643 ACT 0.624 O/U 0.6240 0.5615 2-1/4 9 8 Uncoated 32
    $62.51
  • A51694 ACT 0.131 0.1275 1 4 4 Uncoated 25
    $27.70
  • A50338 ACT 0.1865 0.1865 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 69
    $59.45
  • A52644 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 19
    $59.49
  • A51695 ACT 0.1315 0.1275 1 4 4 Uncoated 18
    $27.70

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

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