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
    A50184 ACT 0.0660 0.0660 1/2 1-3/4 7/8 0.0120 4 Uncoated 28
    $34.73
  • A53789 ACT 15/16 0.9375 0.9375 5-1/8 10-1/4 8 Uncoated 16
    $144.72
  • A53643 ACT 7/8 0.8750 1.32 7/8 .8750 8 1-7/8 Uncoated 2
    $123.78
  • A53624 ACT 15/16 0.9375 0.9375 5-1/8 10-1/4 8 Uncoated Available to Order*
    $119.27
  • A53170 ACT #33 0.1055 0.1055 7/8 3-1/2 4 Uncoated 17
    $23.26
  • A52994 ACT #33 0.1130 0.1055 7/8 3-1/2 4 Uncoated 10
    $20.91
  • A52782 ACT #50 0.0700 0.066 3/4 3 4 Uncoated 20
    $18.85
  • A52490 ACT #50 0.0700 0.066 3/4 3 4 Uncoated 18
    $17.57
  • A51541 ACT 0.0355 0.036 1/2 1-1/2 3 Uncoated 7
    $26.76
  • A50185 ACT #51 0.0670 0.0670 1/2 1-3/4 7/8 0.0120 4 Uncoated 9
    $32.90
  • A78810 ACT 2.0mm 0.0787 0.072 3/4 3 4 Uncoated 14
    $19.22
  • A53790 ACT 31/32 0.9688 0.9688 5-5/16 10-5/8 8 Uncoated 7
    $175.89
  • A53657 ACT 7/8 0.8750 1.336 7/8 .8910 8 1-7/8 Uncoated 6
    $129.93
  • A53625 ACT 31/32 0.9687 0.9688 5-5/16 10-5/8 8 Uncoated Available to Order*
    $133.63
  • A53171 ACT #32 0.1120 0.112 7/8 3-1/2 4 Uncoated 13
    $23.18
  • A52995 ACT #32 0.1160 0.112 7/8 3-1/2 4 Uncoated 10
    $20.99
  • A52783 ACT #49 0.0730 0.066 3/4 3 4 Uncoated 33
    $18.85
  • A52491 ACT #49 0.0730 0.066 3/4 3 4 Uncoated 39
    $17.57
  • A51542 ACT 0.0365 0.037 1/2 1-1/2 3 Uncoated 15
    $26.76
  • A50186 ACT 0.0680 0.0680 1/2 1-3/4 7/8 0.0120 4 Uncoated 46
    $34.73
  • A53791 ACT 1 1.0000 1 5-7/16 10-7/8 8 Uncoated 13
    $175.23
  • A53671 ACT 7/8 0.8750 1.352 7/8 .9060 8 1-7/8 Uncoated 8
    $123.53
  • A53626 ACT 1 1.0000 1 5-7/16 10-7/8 8 Uncoated Available to Order*
    $135.39
  • A53172 ACT 3.0mm 0.1120 0.112 7/8 3-1/2 4 Uncoated 19
    $23.18
  • A52996 ACT 3.0mm 0.1181 0.112 7/8 3-1/2 4 Uncoated 22
    $20.99
  • A52784 ACT #48 0.0760 0.072 3/4 3 4 Uncoated 16
    $18.85
  • A52492 ACT #48 0.0760 0.072 3/4 3 4 Uncoated 5
    $17.57
  • A51543 ACT 0.0375 0.038 1/2 1-1/2 3 Uncoated 12
    $26.76
  • A50187 ACT 0.0690 0.0690 1/2 1-3/4 7/8 0.0120 4 Uncoated 22
    $34.73
  • A78811 ACT #46 0.081 0.0771 3/4 3 4 Uncoated 22
    $19.13
  • A53644 ACT 1 1.0000 1.508 1 1.000 8-1/2 2 Uncoated 10
    $164.31
  • A53627 ACT 1-1/8 1.1250 1.125 5-13/16 11-5/8 8 Uncoated Available to Order*
    $158.36
  • A53173 ACT #31 0.1120 0.112 7/8 3-1/2 4 Uncoated 9
    $23.26
  • A52997 ACT #31 0.1200 0.112 7/8 3-1/2 4 Uncoated 12
    $20.99
  • A52785 ACT 5/64 0.0781 0.072 3/4 3 4 Uncoated 36
    $18.85
  • A52493 ACT 5/64 0.0781 0.072 3/4 3 4 Uncoated 40
    $17.57
  • A51544 ACT 0.0385 0.039 1/2 1-1/2 3 Uncoated 14
    $26.76
  • A50188 ACT #50 0.0700 0.0700 1/2 1-3/4 7/8 0.0120 4 Uncoated 19
    $32.90
  • A53174 ACT 0.124 O/U 0.1190 0.119 7/8 3-1/2 4 Uncoated 15
    $23.26
  • A52998 ACT 0.124 O/U 0.1240 0.119 7/8 3-1/2 4 Uncoated 20
    $20.99
  • A52786 ACT #47 0.0785 0.072 3/4 3 4 Uncoated 23
    $18.85
  • A52494 ACT #47 0.0785 0.072 3/4 3 4 Uncoated 25
    $17.57
  • A51545 ACT 0.0395 0.039 1/2 2-1/2 4 Uncoated 16
    $25.48
  • A50189 ACT 0.0710 0.0710 1/2 1-3/4 7/8 0.0120 4 Uncoated 100
    $34.73
  • A78812 ACT #45 0.082 0.0771 3/4 3 4 Uncoated 18
    $19.13
  • A53672 ACT 1 1.0000 1.540 1 1.0310 8-1/2 2 Uncoated 1
    $156.35
  • A53175 ACT 1/8 0.1190 0.119 7/8 3-1/2 4 Uncoated 17
    $20.79
  • A52999 ACT 1/8 0.1250 0.119 7/8 3-1/2 4 Uncoated 18
    $18.81
  • A52787 ACT 2.0mm 0.0787 0.072 3/4 3 4 Uncoated 23
    $18.85
  • A52495 ACT 2.0mm 0.0787 0.072 3/4 3 4 Uncoated 39
    $17.57
  • A51546 ACT 0.0405 0.039 1/2 2-1/2 4 Uncoated 9
    $25.66
  • A50190 ACT 0.0720 0.0720 1/2 1-3/4 7/8 0.0120 4 Uncoated 24
    $34.73
  • A53176 ACT 0.126 O/U 0.1190 0.119 7/8 3-1/2 4 Uncoated 8
    $23.26
  • A53000 ACT 0.126 O/U 0.1260 0.119 7/8 3-1/2 4 Uncoated 20
    $20.99
  • A52788 ACT #46 0.0810 0.0771 3/4 3 4 Uncoated 20
    $18.85
  • A52496 ACT #46 0.0810 0.0771 3/4 3 4 Uncoated 20
    $17.57
  • A51547 ACT 0.0415 0.039 1/2 2-1/2 4 Uncoated 29
    $25.48
  • A50191 ACT #49 0.0730 0.0730 1/2 1-3/4 7/8 0.0120 4 Uncoated 34
    $32.90
  • A78813 ACT #44 0.086 0.081 3/4 3 4 Uncoated 12
    $19.13
  • A53177 ACT #30 0.1190 0.119 7/8 3-1/2 4 Uncoated 10
    $23.26
  • A53001 ACT #30 0.1285 0.119 7/8 3-1/2 4 Uncoated 9
    $20.99
  • A52789 ACT #45 0.0820 0.0771 3/4 3 4 Uncoated 13
    $18.85
  • A52497 ACT #45 0.0820 0.0771 3/4 3 4 Uncoated 15
    $17.57
  • A51548 ACT 0.0425 0.039 1/2 2-1/2 4 Uncoated 10
    $25.66
  • A50192 ACT 0.0740 0.0740 1/2 1-3/4 7/8 0.0120 4 Uncoated 13
    $34.73
  • A53178 ACT #29 0.1275 0.1275 1 4 4 Uncoated 13
    $27.54
  • A53002 ACT #29 0.1360 0.1275 1 4 4 Uncoated 12
    $25.03
  • A52790 ACT #44 0.0860 0.081 3/4 3 4 Uncoated 11
    $18.85
  • A52498 ACT #44 0.0860 0.081 3/4 3 4 Uncoated 13
    $17.57
  • A51549 ACT 0.0435 0.0455 1/2 2-1/2 4 Uncoated 15
    $25.48
  • A50193 ACT 0.0750 0.0750 1/2 1-3/4 7/8 0.0120 4 Uncoated 19
    $34.73
  • A78814 ACT #43 0.089 0.081 3/4 3 4 Uncoated 14
    $19.22
  • A53179 ACT 3.5mm 0.1350 0.135 1 4 4 Uncoated 19
    $27.54
  • A53003 ACT 3.5mm 0.1378 0.135 1 4 4 Uncoated 6
    $25.03
  • A52791 ACT #43 0.0890 0.081 3/4 3 4 Uncoated 20
    $18.85
  • A52499 ACT #43 0.0890 0.081 3/4 3 4 Uncoated 23
    $17.57
  • A51550 ACT 0.044 0.0455 1/2 2-1/2 4 Uncoated 10
    $25.66
  • A50194 ACT #48 0.0760 0.0760 1/2 1-3/4 7/8 0.0120 4 Uncoated 24
    $32.90
  • A53180 ACT #28 0.1350 0.135 1 4 4 Uncoated 16
    $27.54
  • A53004 ACT #28 0.1405 0.135 1 4 4 Uncoated 6
    $25.03
  • A52792 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 22
    $18.85
  • A52500 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 30
    $17.57
  • A51551 ACT 0.0445 0.0455 1/2 2-1/2 4 Uncoated 26
    $25.48
  • A50195 ACT 0.0770 0.0770 1/2 1-3/4 7/8 0.0120 4 Uncoated 16
    $34.73
  • A78815 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 17
    $19.13
  • A53181 ACT 9/64 0.1350 0.135 1 4 4 Uncoated 5
    $27.54
  • A53005 ACT 9/64 0.1406 0.135 1 4 4 Uncoated 14
    $25.03
  • A52793 ACT 3/32 0.0938 0.088 3/4 3 4 Uncoated 64
    $18.85
  • A52501 ACT 3/32 0.0938 0.088 3/4 3 4 Uncoated 26
    $15.72
  • A51552 ACT 0.045 0.0455 1/2 2-1/2 4 Uncoated 38
    $25.66
  • A50196 ACT 0.0780 0.0780 1/2 1-3/4 7/8 0.0120 4 Uncoated 5
    $34.73
  • A53182 ACT #27 0.1350 0.135 1 4 4 Uncoated 11
    $27.54
  • A52794 ACT #41 0.0960 0.0928 7/8 3-1/2 4 Uncoated 41
    $19.14
  • A52502 ACT #41 0.0960 0.0928 7/8 3-1/2 4 Uncoated 45
    $17.82
  • A51553 ACT 0.0455 0.0455 1/2 2-1/2 4 Uncoated 22
    $25.66
  • A50197 ACT 5/64 0.0781 0.0781 1/2 1-3/4 7/8 0.0120 4 Uncoated 23
    $31.39
  • A53183 ACT #26 0.1430 0.143 1 4 4 Uncoated 15
    $27.54
  • A53007 ACT #26 0.1470 0.143 1 4 4 Uncoated 12
    $25.03
  • A52795 ACT #40 0.0980 0.0928 7/8 3-1/2 4 Uncoated 81
    $19.14
  • A52503 ACT #40 0.0980 0.0928 7/8 3-1/2 4 Uncoated 25
    $17.82

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

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