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
    A53094 ACT Z 0.4130 0.373 1-3/4 7 6 Uncoated 11
    $43.41
  • A52882 ACT O 0.3160 0.2792 1-1/2 6 6 Uncoated 23
    $43.92
  • A52590 ACT O 0.3160 0.2792 1-1/2 6 6 Uncoated 46
    $32.45
  • A51641 ACT 0.0985 0.0928 7/8 3-1/2 4 Uncoated 14
    $23.75
  • A50285 ACT #27 0.1440 0.1440 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 18
    $43.92
  • A53271 ACT 10.5mm 0.3730 0.373 1-3/4 7 6 Uncoated 13
    $63.12
  • A53095 ACT 10.5mm 0.4134 0.373 1-3/4 7 6 Uncoated 7
    $43.41
  • A52883 ACT P 0.3230 0.2792 1-1/2 6 6 Uncoated 15
    $47.37
  • A52591 ACT P 0.3230 0.2792 1-1/2 6 6 Uncoated 17
    $34.67
  • A51642 ACT 0.099 0.0928 7/8 3-1/2 4 Uncoated 22
    $23.75
  • A50286 ACT 0.1450 0.1450 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 19
    $46.84
  • A78780 ACT #9 0.196 0.1895 1-1/4 5 6 Uncoated 7
    $30.92
  • A53272 ACT 27/64 0.3730 0.373 1-3/4 7 6 Uncoated 14
    $63.12
  • A53096 ACT 27/64 0.4219 0.373 1-3/4 7 6 Uncoated 7
    $43.62
  • A52884 ACT 21/64 0.3281 0.2792 1-1/2 6 6 Uncoated 9
    $47.37
  • A52592 ACT 21/64 0.3281 0.2792 1-1/2 6 6 Uncoated 14
    $34.67
  • A51643 ACT 0.1 0.095 7/8 3-1/2 4 Uncoated 29
    $23.75
  • A50287 ACT 0.1460 0.1460 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 22
    $49.28
  • A53273 ACT 11.0mm 0.3730 0.373 1-3/4 7 6 Uncoated 3
    $63.12
  • A53097 ACT 11.0mm 0.4331 0.373 1-3/4 7 6 Uncoated 5
    $43.41
  • A52885 ACT Q 0.3320 0.2792 1-1/2 6 6 Uncoated 19
    $47.37
  • A52593 ACT Q 0.3320 0.2792 1-1/2 6 6 Uncoated 20
    $34.67
  • A51644 ACT 0.1005 0.095 7/8 3-1/2 4 Uncoated 13
    $23.75
  • A50288 ACT #26 0.1470 0.1470 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 24
    $46.02
  • A78781 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 12
    $30.92
  • A53274 ACT 0.4365 O/U 0.3730 0.373 1-3/4 7 6 Uncoated 14
    $62.92
  • A53098 ACT 0.4365 O/U 0.4365 0.373 1-3/4 7 6 Uncoated 19
    $43.62
  • A52886 ACT 8.5mm 0.3346 0.2792 1-1/2 6 6 Uncoated 4
    $47.37
  • A52594 ACT 8.5mm 0.3346 0.2792 1-1/2 6 6 Uncoated 21
    $34.67
  • A51645 ACT 0.101 0.095 7/8 3-1/2 4 Uncoated 17
    $23.75
  • A50289 ACT 0.1480 0.1480 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 16
    $49.28
  • A53275 ACT 7/16 0.3730 0.373 1-3/4 7 6 Uncoated 19
    $60.08
  • A53099 ACT 7/16 0.4375 0.373 1-3/4 7 6 Uncoated 23
    $41.52
  • A52887 ACT R 0.3390 0.2792 1-1/2 6 6 Uncoated 19
    $47.37
  • A52595 ACT R 0.3390 0.2792 1-1/2 6 6 Uncoated 10
    $34.67
  • A51646 ACT 0.102 0.095 7/8 3-1/2 4 Uncoated 13
    $23.75
  • A50290 ACT 0.1490 0.1490 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 12
    $49.28
  • A78782 ACT #8 0.199 0.1895 1-1/4 5 6 Uncoated 2
    $30.92
  • A53276 ACT 0.4385 O/U 0.3730 0.373 1-3/4 7 6 Uncoated 11
    $62.92
  • A53100 ACT 0.4385 O/U 0.4385 0.373 1-3/4 7 6 Uncoated 9
    $43.41
  • A52888 ACT 11/32 0.3438 0.2792 1-1/2 6 6 Uncoated 13
    $47.37
  • A52596 ACT 11/32 0.3438 0.2792 1-1/2 6 6 Uncoated 16
    $34.67
  • A51647 ACT 0.1025 0.095 7/8 3-1/2 4 Uncoated 12
    $23.75
  • A50291 ACT #25 0.1495 0.1495 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 15
    $46.02
  • A53101 ACT 11.5mm 0.4528 0.373 1-3/4 7 6 Uncoated 3
    $47.41
  • A52889 ACT S 0.3480 0.3105 1-3/4 6 6 Uncoated 13
    $48.20
  • A52597 ACT S 0.3480 0.3105 1-3/4 6 6 Uncoated 22
    $35.30
  • A51648 ACT 0.103 0.095 7/8 3-1/2 4 Uncoated 24
    $23.75
  • A50292 ACT 0.1500 0.1500 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 19
    $49.28
  • A78783 ACT #7 0.201 0.1895 1-1/4 5 6 Uncoated 11
    $30.92
  • A53278 ACT 29/64 0.3730 0.373 1-3/4 7 6 Uncoated Available to Order*
    $72.07
  • A53102 ACT 29/64 0.4531 0.373 1-3/4 7 6 Uncoated 12
    $47.57
  • A52890 ACT 9.0mm 0.3543 0.3105 1-3/4 7 6 Uncoated 20
    $48.20
  • A52598 ACT 9.0mm 0.3543 0.3105 1-3/4 7 6 Uncoated 16
    $35.30
  • A51649 ACT 0.1035 0.095 7/8 3-1/2 4 Uncoated 11
    $23.75
  • A50293 ACT 0.1510 0.1510 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 24
    $49.28
  • A53279 ACT 15/32 0.3730 0.373 1-3/4 7 6 Uncoated 12
    $72.07
  • A53103 ACT 15/32 0.4688 0.373 1-3/4 7 6 Uncoated 21
    $47.57
  • A52891 ACT T 0.3580 0.3105 1-3/4 7 6 Uncoated 9
    $48.20
  • A52599 ACT T 0.3580 0.3105 1-3/4 7 6 Uncoated 22
    $35.30
  • A51650 ACT 0.1045 0.103 7/8 3-1/2 4 Uncoated 17
    $23.75
  • A50294 ACT #24 0.1520 0.1520 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 17
    $46.02
  • A53280 ACT 12.0mm 0.4355 0.4355 2 8 6 Uncoated 20
    $72.07
  • A53104 ACT 12.0mm 0.4724 0.4355 2 8 6 Uncoated 19
    $47.41
  • A52892 ACT 23/64 0.3594 0.3105 1-3/4 7 6 Uncoated 6
    $48.20
  • A52600 ACT 23/64 0.3594 0.3105 1-3/4 7 6 Uncoated 12
    $35.30
  • A51651 ACT 0.105 0.103 7/8 3-1/2 4 Uncoated 16
    $23.75
  • A50295 ACT 0.1530 0.1530 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 24
    $49.28
  • A78784 ACT #6 0.204 0.1945 1-1/4 5 6 Uncoated 13
    $30.92
  • A53281 ACT 31/64 0.4355 0.4355 2 8 6 Uncoated 8
    $72.07
  • A53105 ACT 31/64 0.4844 0.4355 2 8 6 Uncoated 19
    $47.41
  • A52893 ACT U 0.3680 0.3105 1-3/4 7 6 Uncoated 22
    $48.20
  • A52601 ACT U 0.3680 0.3105 1-3/4 7 6 Uncoated 19
    $35.30
  • A51652 ACT 0.1055 0.103 7/8 3-1/2 4 Uncoated 7
    $23.66
  • A50296 ACT #23 0.1540 0.1540 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 14
    $46.02
  • A53282 ACT 12.5mm 0.4355 0.4355 2 8 6 Uncoated 8
    $72.07
  • A53106 ACT 12.5mm 0.4921 0.4355 2 8 6 Uncoated 14
    $47.41
  • A52894 ACT 0.374 O/U 0.3740 0.3105 1-3/4 7 6 Uncoated 11
    $45.61
  • A52602 ACT 0.374 O/U 0.3740 0.3105 1-3/4 7 6 Uncoated 100
    $33.32
  • A51653 ACT 0.106 0.103 7/8 3-1/2 4 Uncoated 21
    $23.75
  • A50297 ACT 0.1545 0.1545 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 18
    $56.86
  • A78785 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 2
    $30.92
  • A53283 ACT 0.499 O/U 0.4355 0.4355 2 8 6 Uncoated 7
    $72.07
  • A53107 ACT 0.499 O/U 0.4990 0.4355 2 8 6 Uncoated 13
    $47.57
  • A52895 ACT 3/8 0.3750 0.3105 1-3/4 7 6 Uncoated 100
    $43.49
  • A52603 ACT 3/8 0.3750 0.3105 1-3/4 7 6 Uncoated 100
    $31.53
  • A51654 ACT 0.107 0.103 7/8 3-1/2 4 Uncoated 12
    $23.75
  • A50298 ACT 0.1550 0.1550 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 29
    $49.28
  • A53284 ACT 1/2 0.4355 0.4355 2 8 6 Uncoated 100
    $68.81
  • A53108 ACT 1/2 0.5000 0.4355 2 8 6 Uncoated 20
    $44.90
  • A52896 ACT 0.376 O/U 0.3760 0.3105 1-3/4 7 6 Uncoated 19
    $45.61
  • A52604 ACT 0.376 O/U 0.3760 0.3105 1-3/4 7 6 Uncoated 100
    $33.32
  • A51655 ACT 0.1075 0.103 7/8 3-1/2 4 Uncoated 20
    $23.66
  • A50299 ACT 0.1555 0.1555 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 12
    $56.86
  • A78786 ACT #4 0.209 0.2016 1-1/4 5 6 Uncoated 13
    $30.92
  • A53109 ACT 0.501 O/U 0.5010 0.4355 2 8 6 Uncoated 18
    $47.57
  • A52897 ACT V 0.3770 0.3105 1-3/4 7 6 Uncoated 22
    $58.92
  • A52605 ACT V 0.3770 0.3105 1-3/4 7 6 Uncoated 40
    $38.30
  • A51656 ACT 0.108 0.103 7/8 3-1/2 4 Uncoated 27
    $23.75
  • A50300 ACT 0.1560 0.1560 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 19
    $49.28

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

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