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
    A53763 ACT 7/32 0.2188 0.2188 1-7/8 3-3/4 6 Uncoated 15
    $56.74
  • A53752 ACT 1 1.0000 1/2 4-1/2 6-7/8 5 Black & Gold 10
    $124.47
  • A53725 ACT #4 0.2604 17/64 2-9/16 4-1/16 0.2071 0.2604 6 Uncoated 58
    $50.02
  • A53704 ACT #4 0.2604 17/64 2-9/16 4-1/16 0.2071 0.2604 6 Uncoated 9
    $61.15
  • A53683 ACT #4 0.2604 17/64 2-9/16 4-1/16 0.2071 0.2604 6 Uncoated 19
    $45.86
  • A53648 ACT #8 0.286 7/32 .1790 5 3/4 Uncoated 18
    $36.12
  • A53598 ACT 7/32 0.2188 0.2188 1-7/8 3-3/4 6 Uncoated Available to Order*
    $30.92
  • A53532 ACT 11/16 0.6875 9/16 1-1/4 9 6 Uncoated Available to Order*
    $115.12
  • A53342 ACT 0.4355 0.4355 0.373 1-3/4 7 6 Uncoated 12
    $59.88
  • A53328 ACT 0.4355 0.4355 0.373 1-3/4 7 6 Uncoated 10
    $41.93
  • A53144 ACT #53 0.0585 0.0585 1/2 2-1/2 4 Uncoated 8
    $27.54
  • A52968 ACT #53 0.0595 0.0585 1/2 2-1/2 4 Uncoated 15
    $25.03
  • A52954 ACT 0.4355 0.4355 0.373 1-3/4 7 6 Uncoated 12
    $39.13
  • A52756 ACT #71 0.0260 0.026 1/2 1-1/4 3 Uncoated 12
    $28.91
  • A52727 ACT 0.4355 0.4355 0.373 1-3/4 7 6 Uncoated 14
    $26.23
  • A52464 ACT #71 0.0260 0.026 1/2 1-1/4 3 Uncoated 21
    $26.03
  • A51515 ACT 0.0165 0.018 3/8 7/8 2 Uncoated 20
    $32.33
  • A50159 ACT 0.0480 0.0430 3/8 1-1/2 0.0000 0.0100 4 Uncoated 100
    $34.73
  • A78798 ACT #56 0.0465 0.0455 1/2 2-1/2 4 Uncoated 13
    $23.83
  • A78680 ACT 7/32 0.2188 0.2188 1 3 4 Uncoated 22
    $50.97
  • A53806 ACT 1-1/16 1.0625 1/2 4-1/2 6-7/8 5 Black & Gold 12
    $146.37
  • A53764 ACT 15/64 0.2344 0.2344 2 4 6 Uncoated 12
    $56.74
  • A53726 ACT #5 0.2994 5/16 2-13/16 4-5/16 0.2409 0.2994 6 Uncoated 17
    $53.11
  • A53705 ACT #5 0.2994 5/16 2-13/16 4-5/16 0.2409 0.2994 6 Uncoated 2
    $48.29
  • A53684 ACT #5 0.2994 5/16 2-13/16 4-5/16 0.2409 0.2994 6 Uncoated 35
    $49.36
  • A53662 ACT #8 0.302 7/32 .1950 5 3/4 Uncoated 17
    $36.12
  • A53599 ACT 15/64 0.2344 0.2344 2 4 6 Uncoated Available to Order*
    $31.87
  • A53343 ACT 0.437 0.437 0.373 1-3/4 7 6 Uncoated Available to Order*
    $59.88
  • A53329 ACT 0.437 0.437 0.373 1-3/4 7 6 Uncoated 5
    $41.93
  • A53145 ACT 1/16 0.0585 0.0585 1/2 2-1/2 4 Uncoated 21
    $27.80
  • A52969 ACT 1/16 0.0625 0.0585 1/2 2-1/2 4 Uncoated 8
    $25.03
  • A52955 ACT 0.437 0.437 0.373 1-3/4 7 6 Uncoated Available to Order*
    $39.13
  • A52757 ACT #70 0.0280 0.028 1/2 1-1/4 3 Uncoated 16
    $28.91
  • A52728 ACT 0.437 0.437 0.373 1-3/4 7 6 Uncoated 18
    $36.24
  • A52465 ACT #70 0.0280 0.028 1/2 1-1/4 3 Uncoated 11
    $25.94
  • A51516 ACT 0.017 0.018 3/8 7/8 2 Uncoated 17
    $32.33
  • A50160 ACT 0.0490 0.0440 3/8 1-1/2 0.0000 0.0100 4 Uncoated 21
    $34.73
  • A78681 ACT 15/64 0.2344 0.2344 1 3 4 Uncoated 21
    $55.82
  • A53765 ACT 1/4 0.2500 0.25 2 4 6 Uncoated 20
    $56.62
  • A53727 ACT #6 0.3540 23/64 3-11/16 5-7/16 0.2773 0.354 6 Uncoated 14
    $65.73
  • A53706 ACT #6 0.3540 23/64 3-11/16 5-7/16 0.2773 0.354 6 Uncoated Available to Order*
    $78.43
  • A53685 ACT #6 0.3540 23/64 3-11/16 5-7/16 0.2773 0.354 6 Uncoated 19
    $59.50
  • A53635 ACT #10 0.312 1/4 .1900 5-1/4 7/8 Uncoated 15
    $36.91
  • A53600 ACT 1/4 0.2500 0.25 2 4 6 Uncoated Available to Order*
    $28.57
  • A53534 ACT 3/4 0.7500 5/8 1-3/8 9-1/2 6 Uncoated 13
    $167.61
  • A53344 ACT 0.498 0.498 0.4355 2 8 6 Uncoated 2
    $66.34
  • A53330 ACT 0.498 0.498 0.4355 2 8 6 Uncoated 19
    $45.77
  • A53146 ACT #52 0.0585 0.0585 1/2 2-1/2 4 Uncoated 71
    $27.80
  • A52970 ACT #52 0.0635 0.0585 1/2 2-1/2 4 Uncoated 7
    $25.03
  • A52956 ACT 0.498 0.498 0.4355 2 8 6 Uncoated 14
    $44.82
  • A52758 ACT #69 0.0292 0.0292 1/2 1-3/8 3 Uncoated 19
    $28.91
  • A52729 ACT 0.498 0.498 0.4355 2 8 6 Uncoated 17
    $39.50
  • A52466 ACT #69 0.0292 0.0292 1/2 1-3/8 3 Uncoated 15
    $25.94
  • A51517 ACT 0.0175 0.018 3/8 7/8 2 Uncoated 13
    $32.33
  • A50161 ACT 0.0500 0.0450 3/8 1-1/2 0.0000 0.0100 4 Uncoated 17
    $34.73
  • A78799 ACT 3/64 0.0469 0.0455 1/2 2-1/2 4 Uncoated 13
    $23.83
  • A78682 ACT 1/4 0.25 0.25 1 3 4 Uncoated 32
    $55.82
  • A53766 ACT 17/64 0.2656 0.2656 2-1/8 4-1/4 6 Uncoated 15
    $56.74
  • A53728 ACT #7 0.4220 13/32 4-7/16 6-5/16 0.3297 0.422 6 Uncoated 9
    $82.83
  • A53707 ACT #7 0.4220 13/32 4-7/16 6-5/16 0.3297 0.422 6 Uncoated 13
    $96.81
  • A53686 ACT #7 0.4220 13/32 4-7/16 6-5/16 0.3297 0.422 6 Uncoated 21
    $76.33
  • A53649 ACT #10 0.328 1/4 .2050 5-1/4 7/8 Uncoated 12
    $36.91
  • A53601 ACT 17/64 0.2656 0.2656 2-1/8 4-1/4 6 Uncoated Available to Order*
    $35.71
  • A53345 ACT 0.4995 0.4995 0.4355 2 8 6 Uncoated 18
    $68.44
  • A53331 ACT 0.4995 0.4995 0.4355 2 8 6 Uncoated 7
    $45.77
  • A53147 ACT #51 0.0660 0.066 3/4 3 4 Uncoated 19
    $22.32
  • A52971 ACT #51 0.0670 0.066 3/4 3 4 Uncoated 13
    $20.16
  • A52957 ACT 0.4995 0.4995 0.4355 2 8 6 Uncoated 19
    $61.94
  • A52759 ACT #68 0.0310 0.031 1/2 1-3/8 3 Uncoated 13
    $28.91
  • A52730 ACT 0.4995 0.4995 0.4355 2 8 6 Uncoated 23
    $39.50
  • A52467 ACT #68 0.0310 0.031 1/2 1-3/8 3 Uncoated 42
    $26.03
  • A51518 ACT 0.0185 0.02 3/8 7/8 2 Uncoated 18
    $32.41
  • A50162 ACT 0.0510 0.0510 3/8 1-1/2 3/4 0.0100 4 Uncoated 17
    $34.73
  • A78683 ACT 17/64 0.2656 0.2656 1-1/8 3-1/4 6 Uncoated 23
    $67.99
  • A53767 ACT 9/32 0.2813 0.2812 2-1/8 4-1/4 6 Uncoated 8
    $61.15
  • A53729 ACT #8 0.5050 7/16 5-3/16 7-3/16 0.3971 0.505 6 Uncoated 24
    $108.24
  • A53708 ACT #8 0.5050 7/16 5-3/16 7-3/16 0.3971 0.505 6 Uncoated 10
    $113.60
  • A53687 ACT #8 0.5050 7/16 5-3/16 7-3/16 0.3971 0.505 6 Uncoated 24
    $99.01
  • A53663 ACT #10 0.344 1/4 .2210 5-1/4 7/8 Uncoated 22
    $36.91
  • A53569 ACT 13/16 0.8125 1-3/8 9-1/2 2 8 Uncoated Available to Order*
    $140.59
  • A53536 ACT 13/16 0.8125 5/8 1-3/8 9-1/2 8 Uncoated 5
    $139.20
  • A53148 ACT #50 0.0660 0.066 3/4 3 4 Uncoated 43
    $22.32
  • A52972 ACT #50 0.0700 0.066 3/4 3 4 Uncoated 19
    $20.08
  • A52760 ACT 1/32 0.0313 0.0312 1/2 1-3/8 3 Uncoated 18
    $23.83
  • A52468 ACT 1/32 0.0312 0.0312 1/2 1-3/8 3 Uncoated 22
    $20.50
  • A51519 ACT 0.019 0.02 3/8 7/8 2 Uncoated 17
    $32.41
  • A50163 ACT #55 0.0520 0.0520 3/8 1-1/2 3/4 0.0100 4 Uncoated 17
    $32.90
  • A78800 ACT #55 0.052 0.051 1/2 2-1/2 4 Uncoated 3
    $23.83
  • A78684 ACT 9/32 0.2813 0.2813 1-1/8 3-1/4 6 Uncoated 20
    $67.99
  • A53768 ACT 19/64 0.2969 0.2969 2-1/4 4-1/2 6 Uncoated 11
    $61.15
  • A53730 ACT #9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 12
    $129.10
  • A53709 ACT #9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 5
    $124.85
  • A53688 ACT #9 0.6066 9/16 6-1/16 8-5/16 0.4805 0.6066 6 Uncoated 13
    $119.29
  • A53636 ACT 1/4 0.2500 0.38 9/32 .2500 5-5/8 1 Uncoated 18
    $38.97
  • 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
    $22.32
  • A52973 ACT #49 0.0730 0.066 3/4 3 4 Uncoated 6
    $20.16
  • A52761 ACT #67 0.0320 0.032 1/2 1-3/8 3 Uncoated 11
    $23.83
  • A52469 ACT #67 0.0320 0.032 1/2 1-3/8 3 Uncoated 28
    $21.81
  • A51520 ACT 0.0195 0.02 3/8 7/8 2 Uncoated 10
    $32.33

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

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