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
    A50163 ACT #55 0.0520 0.0520 3/8 1-1/2 3/4 0.0100 4 Uncoated 17
    $36.69
  • A78800 ACT #55 0.052 0.051 1/2 2-1/2 4 Uncoated 3
    $25.90
  • A78684 ACT 9/32 0.2813 0.2813 1-1/8 3-1/4 6 Uncoated 20
    $88.35
  • A53768 ACT 19/64 0.2969 0.2969 2-1/4 4-1/2 6 Uncoated 11
    $63.29
  • A53730 ACT #9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 12
    $133.63
  • A53709 ACT #9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 5
    $129.21
  • A53688 ACT #9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 21
    $123.44
  • A53636 ACT 1/4 0.2500 0.38 9/32 .2500 5-5/8 1 Uncoated 16
    $40.33
  • A53603 ACT 19/64 0.2969 0.2969 2-1/4 4-1/2 6 Uncoated Available to Order*
    $35.71
  • A53149 ACT #49 0.0660 0.066 3/4 3 4 Uncoated 16
    $23.09
  • A52973 ACT #49 0.0730 0.066 3/4 3 4 Uncoated 6
    $20.87
  • A52761 ACT #67 0.0320 0.032 1/2 1-3/8 3 Uncoated 11
    $24.66
  • A52469 ACT #67 0.0320 0.032 1/2 1-3/8 3 Uncoated 26
    $22.60
  • A51520 ACT 0.0195 0.02 3/8 7/8 2 Uncoated 10
    $33.44
  • A50164 ACT 0.0530 0.0530 3/8 1-1/2 3/4 0.0100 4 Uncoated 30
    $38.72
  • A78685 ACT 5/16 0.3125 0.3125 1-1/8 3-1/4 6 Uncoated 21
    $98.09
  • A53769 ACT 5/16 0.3125 0.3125 2-1/4 4-1/2 6 Uncoated 7
    $61.73
  • A53731 ACT #10 0.7216 5/8 6-13/16 9-5/16 0.5799 0.7216 6 Uncoated 11
    $148.22
  • A53710 ACT #10 0.7216 5/8 6-13/16 9-5/16 0.5799 0.7216 6 Uncoated Available to Order*
    $118.78
  • A53689 ACT #10 0.7216 5/8 6-13/16 9-5/16 0.5799 0.7216 6 Uncoated 18
    $135.49
  • A53650 ACT 1/4 0.2500 0.396 9/32 .2650 5-5/8 1 Uncoated 21
    $40.33
  • A53604 ACT 5/16 0.3125 0.3125 2-1/4 4-1/2 6 Uncoated Available to Order*
    $32.28
  • A53571 ACT 7/8 0.8750 1-1/2 10 2 8 Uncoated 12
    $220.74
  • A53538 ACT 7/8 0.8750 3/4 1-1/2 10 8 Uncoated Available to Order*
    $147.31
  • A53150 ACT #48 0.0720 0.072 3/4 3 4 Uncoated 14
    $23.09
  • A52974 ACT #48 0.0760 0.072 3/4 3 4 Uncoated 5
    $20.77
  • A52762 ACT #66 0.0330 0.033 1/2 1-3/8 3 Uncoated 10
    $24.66
  • A52470 ACT #66 0.0330 0.033 1/2 1-3/8 3 Uncoated 10
    $22.60
  • A51521 ACT 0.0205 0.021 1/2 1 3 Uncoated 22
    $30.43
  • A50165 ACT 0.0540 0.0540 3/8 1-1/2 3/4 0.0100 4 Uncoated 14
    $38.72
  • A78801 ACT #54 0.055 0.051 1/2 2-1/2 4 Uncoated 2
    $25.90
  • A78686 ACT 3/8 0.375 0.375 1-1/4 3-1/2 6 Uncoated 6
    $118.21
  • A53770 ACT 11/32 0.3438 0.3438 2-3/8 4-3/4 6 Uncoated 13
    $71.78
  • A53732 ACT #11 0.8780 3/4 8-1/4 11-1/4 0.706 0.878 8 Uncoated 10
    $158.12
  • A53711 ACT #11 0.8780 3/4 8-1/4 11-1/4 0.706 0.878 8 Uncoated 5
    $131.60
  • A53690 ACT #11 0.8780 3/4 8-1/4 11-1/4 0.706 0.878 8 Uncoated 9
    $143.60
  • A53664 ACT 1/4 0.2500 0.412 9/32 .2810 5-5/8 1 Uncoated 31
    $40.33
  • A53605 ACT 11/32 0.3438 0.3438 2-3/8 4-3/4 6 Uncoated Available to Order*
    $38.18
  • A53151 ACT 5/64 0.0720 0.072 3/4 3 4 Uncoated 5
    $23.09
  • A52975 ACT 5/64 0.0781 0.072 3/4 3 4 Uncoated 8
    $20.87
  • A52763 ACT #65 0.0350 0.035 1/2 1-1/2 3 Uncoated 18
    $24.66
  • A52471 ACT #65 0.0350 0.035 1/2 1-1/2 3 Uncoated 16
    $22.60
  • A51522 ACT 0.0215 0.0225 1/2 1 3 Uncoated 12
    $30.43
  • A50166 ACT #54 0.0550 0.0550 3/8 1-1/2 3/4 0.0100 4 Uncoated 19
    $36.69
  • A78687 ACT 13/32 0.4062 0.4062 1-1/4 3-1/2 6 Uncoated 33
    $135.39
  • A53771 ACT 3/8 0.3750 0.375 2-1/2 5 6 Uncoated 14
    $69.97
  • A53733 ACT #12 1.0500 3/4 10 13-7/8 0.842 1.05 8 Uncoated 8
    $177.21
  • A53712 ACT #12 1.0500 3/4 10 13-7/8 0.842 1.05 8 Uncoated 6
    $194.90
  • A53691 ACT #12 1.0500 3/4 10 13-7/8 0.842 1.05 8 Uncoated 12
    $223.39
  • A53637 ACT 5/16 0.3125 0.474 5/16 .3125 6-1/8 1 Uncoated 20
    $50.34
  • A53606 ACT 3/8 0.3750 0.375 2-1/2 5 6 Uncoated Available to Order*
    $34.67
  • A53573 ACT 15/16 0.9375 1-1/2 10 3 8 Uncoated 21
    $180.96
  • A53152 ACT #47 0.0720 0.072 3/4 3 4 Uncoated 8
    $23.09
  • A52976 ACT #47 0.0785 0.072 3/4 3 4 Uncoated 16
    $20.77
  • A52764 ACT #64 0.0360 0.036 1/2 1-1/2 3 Uncoated 20
    $24.66
  • A52472 ACT #64 0.0360 0.036 1/2 1-1/2 3 Uncoated 14
    $22.60
  • A51523 ACT 0.022 0.0225 1/2 1 3 Uncoated 33
    $30.43
  • A50167 ACT 0.0560 0.0560 3/8 1-1/2 3/4 0.0100 4 Uncoated 18
    $38.72
  • A78802 ACT 1.5mm 0.0591 0.051 1/2 2-1/2 4 Uncoated 11
    $25.90
  • A78688 ACT 7/16 0.4375 0.4375 1-3/8 4 6 Uncoated 17
    $153.46
  • A53772 ACT 13/32 0.4063 0.4062 2-5/8 5-1/4 6 Uncoated 20
    $81.26
  • A53734 ACT #13 1.2590 1-1/16 12 16 1.009 1.259 10 Uncoated 11
    $476.66
  • A53692 ACT #13 1.2590 1-1/16 12 16 1.009 1.259 10 Uncoated 1
    $312.44
  • A53651 ACT 5/16 0.3125 0.489 5/16 .3280 6-1/8 1 Uncoated 13
    $50.34
  • A53541 ACT 31/32 0.9688 3/4 1-1/2 10 8 Uncoated Available to Order*
    $178.19
  • A53153 ACT 2.0mm 0.0720 0.072 3/4 3 4 Uncoated 12
    $23.01
  • A52977 ACT 2.0mm 0.0787 0.072 3/4 3 4 Uncoated 18
    $20.87
  • A52765 ACT #63 0.0370 0.037 1/2 1-1/2 3 Uncoated 15
    $24.66
  • A52473 ACT #63 0.0370 0.037 1/2 1-1/2 3 Uncoated 15
    $22.60
  • A51524 ACT 0.023 0.024 1/2 1-1/8 3 Uncoated 14
    $30.43
  • A50168 ACT 0.0570 0.0570 3/8 1-1/2 3/4 0.0100 4 Uncoated 18
    $38.72
  • A78689 ACT 1/2 0.5 0.5 1-1/2 4 6 Uncoated 16
    $221.37
  • A53773 ACT 7/16 0.4375 0.4375 2-3/4 5-1/2 6 Uncoated 8
    $79.57
  • A53735 ACT #14 1.5420 1-13/32 14 18-1/4 1.25 1.542 10 Uncoated 16
    $770.55
  • A53714 ACT #14 1.5420 1-13/32 14 18-1/4 1.25 1.542 10 Uncoated 3
    $841.96
  • A53693 ACT #14 1.5420 1-13/32 14 1.25 1.542 10 Uncoated 22
    $500.65
  • A53665 ACT 5/16 0.3125 0.504 5/16 .3430 6-1/8 1 Uncoated 11
    $50.34
  • A53608 ACT 7/16 0.4375 0.4375 2-3/4 5-1/2 6 Uncoated Available to Order*
    $41.52
  • A53575 ACT 1 1.0000 1-5/8 10-1/2 3 8 Uncoated 16
    $262.34
  • A53542 ACT 1 1.0000 7/8 1-5/8 10-1/2 8 Uncoated 13
    $247.22
  • A53154 ACT #46 0.0771 0.0771 3/4 3 4 Uncoated 13
    $23.01
  • A52978 ACT #46 0.0810 0.0771 3/4 3 4 Uncoated 6
    $20.77
  • A52766 ACT #62 0.0380 0.038 1/2 1-1/2 3 Uncoated 21
    $24.66
  • A52474 ACT #62 0.0380 0.038 1/2 1-1/2 3 Uncoated 17
    $22.60
  • A51525 ACT 0.0235 0.024 1/2 1-1/8 3 Uncoated 9
    $30.43
  • A50169 ACT 0.0580 0.0580 3/8 1-1/2 3/4 0.0100 4 Uncoated 18
    $38.72
  • A78803 ACT #53 0.0595 0.0585 1/2 2-1/2 4 Uncoated 12
    $25.90
  • A53774 ACT 15/32 0.4688 0.4688 2-7/8 5-3/4 6 Uncoated 6
    $88.03
  • A53638 ACT 3/8 0.3750 0.569 3/8 .3750 6-1/2 1-1/4 Uncoated 6
    $54.96
  • A53609 ACT 15/32 0.4688 0.4688 2-7/8 5-3/4 6 Uncoated Available to Order*
    $47.57
  • A53576 ACT 1-1/32 1.0313 1-5/8 10-1/2 3 8 Uncoated 9
    $197.33
  • A53155 ACT #45 0.0771 0.0771 3/4 3 4 Uncoated 12
    $23.09
  • A52979 ACT #45 0.0820 0.0771 3/4 3 4 Uncoated 24
    $20.77
  • A52767 ACT #61 0.0390 0.039 1/2 1-1/2 3 Uncoated 14
    $24.66
  • A52475 ACT #61 0.0390 0.039 1/2 1-1/2 3 Uncoated 22
    $22.60
  • A51526 ACT 0.0245 0.025 1/2 1-1/8 3 Uncoated 6
    $30.43
  • A50170 ACT 0.0590 0.0590 3/8 1-1/2 3/4 0.0100 4 Uncoated 11
    $38.72
  • A53775 ACT 1/2 0.5000 0.5 3 6 6 Uncoated 17
    $85.01
  • A53652 ACT 3/8 0.3750 0.585 3/8 .3900 6-1/2 1-1/4 Uncoated 15
    $54.96
  • A53610 ACT 1/2 0.5000 0.5 3 6 6 Uncoated Available to Order*
    $44.90

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

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