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
    A78813 ACT #44 0.086 0.081 3/4 3 4 Uncoated 12
    $20.77
  • A53177 ACT #30 0.1190 0.119 7/8 3-1/2 4 Uncoated 10
    $24.07
  • A53001 ACT #30 0.1285 0.119 7/8 3-1/2 4 Uncoated 9
    $21.73
  • A52789 ACT #45 0.0820 0.0771 3/4 3 4 Uncoated 23
    $19.50
  • A52497 ACT #45 0.0820 0.0771 3/4 3 4 Uncoated 15
    $18.18
  • A51548 ACT 0.0425 0.039 1/2 2-1/2 4 Uncoated 10
    $26.55
  • A50192 ACT 0.0740 0.0740 1/2 1-3/4 7/8 0.0120 4 Uncoated 6
    $38.72
  • A53178 ACT #29 0.1275 0.1275 1 4 4 Uncoated 10
    $28.49
  • A53002 ACT #29 0.1360 0.1275 1 4 4 Uncoated 12
    $25.90
  • A52790 ACT #44 0.0860 0.081 3/4 3 4 Uncoated 19
    $19.50
  • A52498 ACT #44 0.0860 0.081 3/4 3 4 Uncoated 11
    $18.18
  • A51549 ACT 0.0435 0.0455 1/2 2-1/2 4 Uncoated 15
    $26.39
  • A50193 ACT 0.0750 0.0750 1/2 1-3/4 7/8 0.0120 4 Uncoated 17
    $38.72
  • A78814 ACT #43 0.089 0.081 3/4 3 4 Uncoated 14
    $20.87
  • A53179 ACT 3.5mm 0.1350 0.135 1 4 4 Uncoated 19
    $28.49
  • A53003 ACT 3.5mm 0.1378 0.135 1 4 4 Uncoated 6
    $25.90
  • A52791 ACT #43 0.0890 0.081 3/4 3 4 Uncoated 20
    $19.50
  • A52499 ACT #43 0.0890 0.081 3/4 3 4 Uncoated 23
    $18.18
  • A51550 ACT 0.044 0.0455 1/2 2-1/2 4 Uncoated 10
    $26.55
  • A50194 ACT #48 0.0760 0.0760 1/2 1-3/4 7/8 0.0120 4 Uncoated 20
    $36.69
  • A53180 ACT #28 0.1350 0.135 1 4 4 Uncoated 16
    $28.49
  • A53004 ACT #28 0.1405 0.135 1 4 4 Uncoated 6
    $25.90
  • A52792 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 51
    $19.50
  • A52500 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 26
    $18.18
  • A51551 ACT 0.0445 0.0455 1/2 2-1/2 4 Uncoated 25
    $26.39
  • A50195 ACT 0.0770 0.0770 1/2 1-3/4 7/8 0.0120 4 Uncoated 16
    $38.72
  • A78815 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 17
    $20.77
  • A53181 ACT 9/64 0.1350 0.135 1 4 4 Uncoated 5
    $28.49
  • A53005 ACT 9/64 0.1406 0.135 1 4 4 Uncoated 14
    $25.90
  • A52793 ACT 3/32 0.0938 0.088 3/4 3 4 Uncoated 64
    $19.50
  • A52501 ACT 3/32 0.0938 0.088 3/4 3 4 Uncoated 52
    $16.24
  • A51552 ACT 0.045 0.0455 1/2 2-1/2 4 Uncoated 38
    $26.55
  • A50196 ACT 0.0780 0.0780 1/2 1-3/4 7/8 0.0120 4 Uncoated Available to Order*
    $38.72
  • A53182 ACT #27 0.1350 0.135 1 4 4 Uncoated 11
    $28.49
  • A52794 ACT #41 0.0960 0.0928 7/8 3-1/2 4 Uncoated 39
    $19.79
  • A52502 ACT #41 0.0960 0.0928 7/8 3-1/2 4 Uncoated 41
    $18.43
  • A51553 ACT 0.0455 0.0455 1/2 2-1/2 4 Uncoated 22
    $26.55
  • A50197 ACT 5/64 0.0781 0.0781 1/2 1-3/4 7/8 0.0120 4 Uncoated 15
    $35.01
  • A53183 ACT #26 0.1430 0.143 1 4 4 Uncoated 15
    $28.49
  • A53007 ACT #26 0.1470 0.143 1 4 4 Uncoated 12
    $25.90
  • A52795 ACT #40 0.0980 0.0928 7/8 3-1/2 4 Uncoated 70
    $19.79
  • A52503 ACT #40 0.0980 0.0928 7/8 3-1/2 4 Uncoated 16
    $18.43
  • A51554 ACT 0.046 0.0455 1/2 2-1/2 4 Uncoated 23
    $26.55
  • A50198 ACT #47 0.0785 0.0785 1/2 1-3/4 7/8 0.0120 4 Uncoated 21
    $36.69
  • A78816 ACT #41 0.096 0.0928 7/8 3-1/2 4 Uncoated 26
    $20.91
  • A53184 ACT #25 0.1430 0.143 1 4 4 Uncoated 21
    $28.49
  • A53008 ACT #25 0.1495 0.143 1 4 4 Uncoated 7
    $25.90
  • A52796 ACT 2.5mm 0.0984 0.0928 7/8 3-1/2 4 Uncoated 7
    $19.79
  • A52504 ACT 2.5mm 0.0984 0.0928 7/8 3-1/2 4 Uncoated 22
    $18.43
  • A51555 ACT 0.047 0.051 1/2 2-1/2 4 Uncoated 24
    $26.55
  • A50199 ACT 2.0mm 0.0787 2.000 1/2 1-3/4 22mm 0.0120 4 Uncoated 72
    $38.72
  • A53185 ACT #24 0.1460 0.146 1 4 4 Uncoated 24
    $28.49
  • A53009 ACT #24 0.1520 0.146 1 4 4 Uncoated 14
    $26.88
  • A52797 ACT #39 0.0995 0.0928 7/8 3-1/2 4 Uncoated 22
    $19.79
  • A52505 ACT #39 0.0995 0.0928 7/8 3-1/2 4 Uncoated 20
    $18.43
  • A51556 ACT 0.0475 0.051 1/2 2-1/2 4 Uncoated 17
    $26.55
  • A50200 ACT 0.0790 0.0790 1/2 1-3/4 7/8 0.0120 4 Uncoated 14
    $38.72
  • A78817 ACT #40 0.098 0.0928 7/8 3-1/2 4 Uncoated 16
    $20.91
  • A53186 ACT #23 0.1460 0.146 1 4 4 Uncoated Available to Order*
    $28.49
  • A53010 ACT #23 0.1540 0.146 1 4 4 Uncoated 12
    $26.88
  • A52798 ACT #38 0.1015 0.095 7/8 3-1/2 4 Uncoated 12
    $19.79
  • A52506 ACT #38 0.1015 0.095 7/8 3-1/2 4 Uncoated 30
    $18.43
  • A51557 ACT 0.048 0.051 1/2 2-1/2 4 Uncoated 21
    $26.55
  • A50201 ACT 0.0800 0.0800 1/2 1-3/4 7/8 0.0120 4 Uncoated 26
    $38.72
  • A53187 ACT 5/32 0.1510 0.151 1 4 4 Uncoated 27
    $28.49
  • A53011 ACT 5/32 0.1563 0.151 1 4 4 Uncoated 13
    $26.96
  • A52799 ACT #37 0.1040 0.095 7/8 3-1/2 4 Uncoated 19
    $19.79
  • A52507 ACT #37 0.1040 0.095 7/8 3-1/2 4 Uncoated 17
    $18.43
  • A51558 ACT 0.0485 0.051 1/2 2-1/2 4 Uncoated 18
    $26.55
  • A50202 ACT #46 0.0810 0.0810 1/2 2 7/8 0.0120 4 Uncoated Available to Order*
    $36.69
  • A78818 ACT 2.5mm 0.0984 0.0928 7/8 3-1/2 4 Uncoated 29
    $20.91
  • A53188 ACT #22 0.1510 0.151 1 4 6 Uncoated 15
    $28.49
  • A53012 ACT #22 0.1570 0.151 1 4 6 Uncoated 24
    $26.88
  • A52800 ACT #36 0.1065 0.103 7/8 3-1/2 4 Uncoated 12
    $19.79
  • A52508 ACT #36 0.1065 0.103 7/8 3-1/2 4 Uncoated 23
    $18.43
  • A51559 ACT 0.049 0.051 1/2 2-1/2 4 Uncoated 22
    $26.55
  • A50203 ACT #45 0.0820 0.0820 1/2 2 7/8 0.0120 4 Uncoated 21
    $36.69
  • A53189 ACT 4.0mm 0.1510 0.151 1 4 6 Uncoated 18
    $28.49
  • A53013 ACT 4.0mm 0.1575 0.151 1 4 6 Uncoated 15
    $26.96
  • A52801 ACT 7/64 0.1094 0.103 7/8 3-1/2 4 Uncoated 23
    $20.54
  • A52509 ACT 7/64 0.1094 0.103 7/8 3-1/2 4 Uncoated 56
    $18.77
  • A51560 ACT 0.0495 0.051 1/2 2-1/2 4 Uncoated 12
    $26.55
  • A50204 ACT 0.0830 0.0830 1/2 2 7/8 0.0120 4 Uncoated 24
    $38.72
  • A78819 ACT #39 0.0995 0.0928 7/8 3-1/2 4 Uncoated 13
    $20.91
  • A53190 ACT #21 0.1530 0.153 1-1/8 4-1/2 6 Uncoated 18
    $30.59
  • A53014 ACT #21 0.1590 0.153 1-1/8 4-1/2 6 Uncoated 7
    $27.66
  • A52802 ACT #35 0.1100 0.103 7/8 3-1/2 4 Uncoated 14
    $20.54
  • A52510 ACT #35 0.1100 0.103 7/8 3-1/2 4 Uncoated 29
    $18.77
  • A51561 ACT 0.05 0.051 1/2 2-1/2 4 Uncoated 47
    $26.55
  • A50205 ACT 0.0840 0.0840 1/2 2 7/8 0.0120 4 Uncoated 22
    $38.72
  • A53191 ACT #20 0.1530 0.153 1-1/8 4-1/2 6 Uncoated 13
    $30.59
  • A53015 ACT #20 0.1610 0.153 1-1/8 4-1/2 6 Uncoated 25
    $27.66
  • A52803 ACT #34 0.1110 0.1055 7/8 3-1/2 4 Uncoated 14
    $20.54
  • A52511 ACT #34 0.1110 0.1055 7/8 3-1/2 4 Uncoated 11
    $18.77
  • A51562 ACT 0.0505 0.051 1/2 2-1/2 4 Uncoated 9
    $26.55
  • A50206 ACT 0.0850 0.0850 1/2 2 7/8 0.0120 4 Uncoated 17
    $38.72
  • A78820 ACT #38 0.1015 0.095 7/8 3-1/2 4 Uncoated 13
    $20.91
  • A53192 ACT #19 0.1595 0.1595 1-1/8 4-1/2 6 Uncoated 16
    $30.59
  • A53016 ACT #19 0.1660 0.1595 1-1/8 4-1/2 6 Uncoated 15
    $27.66
  • A52804 ACT #33 0.1130 0.1055 7/8 3-1/2 4 Uncoated 13
    $20.54

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

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