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
    A78716 ACT F 0.257 0.2485 1-1/2 6 6 Uncoated 15
    $29.65
  • A52926 ACT 23/32 0.7188 0.5615 2-1/4 9 8 Uncoated 13
    $109.76
  • A52634 ACT 0.5615 O/U 0.5615 0.4355 2 8 8 Uncoated 7
    $51.67
  • A51685 ACT 0.1255 0.119 7/8 3-1/2 4 Uncoated 60
    $26.76
  • A50329 ACT 0.1790 0.1790 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 9
    $49.57
  • A52927 ACT 3/4 0.7500 0.624 2-1/2 9 8 Uncoated 6
    $109.73
  • A52635 ACT 9/16 0.5625 0.4355 2 8 8 Uncoated 27
    $49.06
  • A51686 ACT 0.1265 0.119 7/8 3-1/2 4 Uncoated 37
    $26.76
  • A50330 ACT #15 0.1800 0.1800 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 2
    $46.02
  • A78717 ACT G 0.261 0.2485 1-1/2 6 6 Uncoated 16
    $29.47
  • A52928 ACT 25/32 0.7813 0.624 2-1/2 9 8 Uncoated 5
    $118.62
  • A52636 ACT 0.5635 O/U 0.5635 0.4355 2 8 8 Uncoated 16
    $51.67
  • A51687 ACT 0.127 0.119 7/8 3-1/2 4 Uncoated 43
    $26.76
  • A50331 ACT 0.1810 0.1810 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $49.57
  • A52929 ACT 13/16 0.8125 0.624 2-1/2 9 8 Uncoated 18
    $117.88
  • A52637 ACT 14.5mm 0.5709 0.4355 2 8 8 Uncoated 11
    $51.67
  • A51688 ACT 0.1275 0.119 7/8 3-1/2 4 Uncoated 22
    $26.76
  • A50332 ACT #14 0.1820 0.1820 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 15
    $46.02
  • A52930 ACT 27/32 0.8438 0.624 2-1/2 9-1/2 8 Uncoated 13
    $140.31
  • A52638 ACT 37/64 0.5781 0.4355 2 8 8 Uncoated 13
    $51.67
  • A51689 ACT 0.128 0.119 7/8 3-1/2 4 Uncoated 34
    $26.76
  • A50333 ACT 0.1830 0.1830 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $49.57
  • A78718 ACT H 0.266 0.2485 1-1/2 6 6 Uncoated 9
    $32.86
  • A52931 ACT 7/8 0.8750 0.749 2-5/8 10 8 Uncoated 5
    $143.61
  • A52639 ACT 15.0mm 0.5906 0.4355 2 8 8 Uncoated 18
    $51.67
  • A51690 ACT 0.129 0.1275 1 4 4 Uncoated 100
    $26.76
  • A50334 ACT 0.1840 0.1840 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $49.57
  • A52932 ACT 29/32 0.9063 0.749 2-5/8 10 8 Uncoated 11
    $154.49
  • A52640 ACT 19/32 0.5938 0.4355 2 8 8 Uncoated 20
    $49.06
  • A51691 ACT 0.1295 0.1275 1 4 4 Uncoated 18
    $26.76
  • A50335 ACT #13 0.1850 0.1850 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 11
    $46.02
  • A78719 ACT I 0.272 0.2485 1-1/2 6 6 Uncoated 12
    $32.86
  • A52933 ACT 15/16 0.9375 0.749 2-5/8 10 8 Uncoated 15
    $153.92
  • A52641 ACT 39/64 0.6094 0.5615 2-1/4 9 8 Uncoated 20
    $60.41
  • A51692 ACT 0.13 0.1275 1 4 4 Uncoated 53
    $26.76
  • A50336 ACT 0.1855 0.1855 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $59.29
  • A52934 ACT 31/32 0.9688 0.749 2-5/8 10 8 Uncoated 4
    $172.89
  • A52642 ACT 15.5mm 0.6102 0.5615 2-1/4 9 8 Uncoated 17
    $60.41
  • A51693 ACT 0.1305 0.1275 1 4 4 Uncoated 20
    $26.76
  • A50337 ACT 0.1860 0.1860 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 23
    $49.57
  • A78720 ACT 7.0mm 0.2756 0.2485 1-1/2 6 6 Uncoated 11
    $32.86
  • A52935 ACT 1 1.0000 0.874 2-3/4 10-1/2 8 Uncoated 17
    $174.82
  • A52643 ACT 0.624 O/U 0.6240 0.5615 2-1/4 9 8 Uncoated 35
    $60.41
  • A51694 ACT 0.131 0.1275 1 4 4 Uncoated 19
    $26.76
  • A50338 ACT 0.1865 0.1865 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 11
    $53.32
  • A52644 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 28
    $57.48
  • A51695 ACT 0.1315 0.1275 1 4 4 Uncoated 9
    $26.76
  • A50339 ACT 0.1870 0.1870 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 41
    $49.57
  • A78721 ACT J 0.277 0.2485 1-1/2 6 6 Uncoated 10
    $32.86
  • A52645 ACT 0.626 O/U 0.6260 0.5615 2-1/4 9 8 Uncoated 88
    $62.18
  • A51696 ACT 0.132 0.1275 1 4 4 Uncoated 19
    $26.76
  • A50340 ACT 3/16 0.1875 0.1875 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 100
    $44.58
  • A52646 ACT 16.0mm 0.6299 0.5615 2-1/4 9 8 Uncoated 24
    $62.18
  • A51697 ACT 0.1325 0.1275 1 4 4 Uncoated 13
    $26.76
  • A50341 ACT 0.1880 0.1880 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 100
    $49.57
  • A78722 ACT K 0.281 0.2485 1-1/2 6 6 Uncoated 9
    $32.86
  • A52647 ACT 41/64 0.6406 0.5615 2-1/4 9 8 Uncoated 11
    $62.14
  • A51698 ACT 0.133 0.1275 1 4 4 Uncoated 22
    $26.76
  • A50342 ACT 0.1885 0.1885 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 51
    $53.32
  • A52648 ACT 16.5mm 0.6496 0.5615 2-1/4 9 8 Uncoated 17
    $64.86
  • A51699 ACT 0.1335 0.1275 1 4 4 Uncoated 9
    $26.76
  • A50343 ACT #12 0.1890 0.1890 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 1
    $46.02
  • A78723 ACT 9/32 0.2813 0.2485 1-1/2 6 6 Uncoated 10
    $31.08
  • A52649 ACT 21/32 0.6562 0.5615 2-1/4 9 8 Uncoated 19
    $66.67
  • A51700 ACT 0.134 0.1275 1 4 4 Uncoated 71
    $26.76
  • A50344 ACT 0.1900 0.1900 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 22
    $49.57
  • A52650 ACT 17.0mm 0.6693 0.5615 2-1/4 9 8 Uncoated 15
    $69.97
  • A51701 ACT 0.1345 0.1275 1 4 4 Uncoated 9
    $26.76
  • A50345 ACT #11 0.1910 0.1910 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 17
    $56.07
  • A78724 ACT L 0.29 0.2792 1-1/2 6 6 Uncoated 13
    $32.86
  • A52651 ACT 43/64 0.6719 0.5615 2-1/4 9 8 Uncoated 23
    $69.97
  • A51702 ACT 0.135 0.1275 1 4 4 Uncoated 63
    $26.76
  • A50346 ACT 0.1920 0.1920 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 24
    $60.00
  • A52652 ACT 0.6865 O/U 0.6865 0.5615 2-1/4 9 8 Uncoated 9
    $69.93
  • A51703 ACT 0.1355 0.1275 1 4 4 Uncoated 10
    $26.76
  • A50347 ACT 0.1930 0.1930 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 16
    $60.00
  • A78725 ACT M 0.295 0.2792 1-1/2 6 6 Uncoated 2
    $32.86
  • A52653 ACT 11/16 0.6875 0.5615 2-1/4 9 8 Uncoated 19
    $66.85
  • A51704 ACT 0.1365 0.135 1 4 4 Uncoated 11
    $26.76
  • A50348 ACT #10 0.1935 0.1935 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 18
    $56.07
  • A52654 ACT 0.6885 O/U 0.6885 0.5615 2-1/4 9 8 Uncoated 13
    $75.25
  • A51705 ACT 0.137 0.135 1 4 4 Uncoated 19
    $26.76
  • A50349 ACT 0.1940 0.1940 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 18
    $60.00
  • A78726 ACT 7.5mm 0.2953 0.2792 1-1/2 6 6 Uncoated 3
    $32.86
  • A52655 ACT 17.5mm 0.6890 0.5615 2-1/4 9 8 Uncoated 7
    $75.25
  • A51706 ACT 0.1375 0.135 1 4 4 Uncoated 11
    $26.76
  • A50350 ACT 0.1950 0.1950 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 21
    $60.00
  • A52656 ACT 45/64 0.7031 0.5615 2-1/4 9 8 Uncoated 20
    $75.17
  • A51707 ACT 0.138 0.135 1 4 4 Uncoated 36
    $26.76
  • A50351 ACT #9 0.1960 0.1960 1 3 1-3/4 0.0250 4 Uncoated 24
    $56.07
  • A52657 ACT 18.0mm 0.7087 0.5615 2-1/4 9 8 Uncoated 5
    $75.17
  • A51708 ACT 0.1385 0.135 1 4 4 Uncoated 17
    $26.76
  • A50352 ACT 5.0mm 0.1969 5.000 1 3 44mm 0.0250 4 Uncoated 19
    $60.00
  • A78727 ACT N 0.302 0.2792 1-1/2 6 6 Uncoated 13
    $32.86
  • A52658 ACT 23/32 0.7188 0.5615 2-1/4 9 8 Uncoated 18
    $74.68
  • A51709 ACT 0.139 0.135 1 4 4 Uncoated 20
    $26.76
  • A50353 ACT 0.1970 0.1970 1 3 1-3/4 0.0250 4 Uncoated Available to Order*
    $60.00
  • A52659 ACT 18.5mm 0.7283 0.624 2-1/2 9 8 Uncoated 7
    $77.98
  • A51710 ACT 0.1395 0.135 1 4 4 Uncoated 15
    $26.76
  • A50354 ACT 0.1980 0.1980 1 3 1-3/4 0.0250 4 Uncoated 15
    $60.00

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

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