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
    A78669 ACT 3/64 0.0469 0.0404 3/8 1-1/2 4 Uncoated 23
    $29.65
  • A55779 ACT 9/16 0.5625 1-1/16 4 5-1/2 1-1/16 5 Black & Gold 100
    $115.99
  • A53796 ACT 1/16 0.2750 0.3125 3/4 2-1/8 0.2320 0.275 .2350 6 Uncoated 16
    $67.34
  • A53753 ACT 1/16 0.0625 0.0625 1 2 4 Uncoated 13
    $51.83
  • A53742 ACT 3/8 0.3750 3/8 2-1/2 4-5/8 5 Black & Gold 100
    $55.05
  • A53715 ACT #7/0 0.0666 5/64 13/16 1-13/16 0.0497 0.0666 4 Uncoated 8
    $40.66
  • A53694 ACT #7/0 0.0666 5/64 13/16 1-13/16 0.0497 0.0666 4 Uncoated 27
    $49.98
  • A53673 ACT #7/0 0.0666 5/64 13/16 1-13/16 0.0497 0.0666 4 Uncoated 5
    $53.81
  • A53631 ACT #4 0.183 1/8 .1120 3-7/8 9/16 Uncoated 21
    $33.16
  • A53588 ACT 1/16 0.0625 0.0625 1 2 4 Uncoated Available to Order*
    $25.90
  • A53555 ACT 3/8 0.3750 3/4 7 1 6 Uncoated 3
    $95.04
  • A53522 ACT 3/8 0.3750 5/16 3/4 7 6 Uncoated 5
    $110.34
  • A53332 ACT 0.123 0.123 0.119 7/8 3-1/2 4 Uncoated 6
    $22.02
  • A53318 ACT 0.123 0.123 0.119 7/8 3-1/2 4 Uncoated 12
    $20.91
  • A53134 ACT 1.0mm 0.0394 0.0394 1/2 2-1/2 4 Uncoated 19
    $27.54
  • A52958 ACT 1.0mm 0.0394 0.0394 1/2 2-1/2 4 Uncoated 14
    $25.03
  • A52944 ACT 0.123 0.123 0.119 7/8 3-1/2 4 Uncoated 20
    $19.88
  • A52746 ACT #80 0.0135 0.0135 3/8 3/4 2 Uncoated 11
    $28.91
  • A52717 ACT 0.123 0.123 0.119 7/8 3-1/2 4 Uncoated 8
    $18.14
  • A52454 ACT #80 0.0135 0.0135 3/8 3/4 2 Uncoated 21
    $25.94
  • A50149 ACT #60 0.0400 0.0350 1/4 1-1/2 0.0000 0.0070 4 Uncoated 77
    $32.90
  • A78793 ACT 1.0mm 0.0394 0.0394 1/2 2-1/2 4 Uncoated 3
    $23.83
  • A78670 ACT 1/16 0.0625 0.0625 3/8 1-1/2 4 Uncoated 28
    $29.65
  • A55780 ACT 11/16 0.6875 1-1/16 4-1/2 6-3/8 1-1/16 5 Black & Gold 100
    $140.89
  • A53849 ACT 1/2 0.5000 5-1/8 9 2 0.3125 5 Uncoated 21
    $90.71
  • A53797 ACT 1/8 0.3620 0.4375 3/4 2-1/8 0.3160 0.362 .3280 6 Uncoated 50
    $62.80
  • A53754 ACT 5/64 0.0781 0.0781 1 2 4 Uncoated 17
    $51.67
  • A53743 ACT 7/16 0.4375 7/16 3-1/4 5-3/8 5 Black & Gold 100
    $59.37
  • A53716 ACT #6/0 0.0806 3/32 15/16 1-15/16 0.0611 0.0806 4 Uncoated Available to Order*
    $40.41
  • A53695 ACT #6/0 0.0806 3/32 15/16 1-15/16 0.0611 0.0806 4 Uncoated Available to Order*
    $34.02
  • A53674 ACT #6/0 0.0806 3/32 15/16 1-15/16 0.0611 0.0806 4 Uncoated 23
    $53.81
  • A53645 ACT #4 0.199 1/8 .1270 3-7/8 9/16 Uncoated 15
    $31.88
  • A53589 ACT 5/64 0.0781 0.0781 1 2 4 Uncoated Available to Order*
    $20.87
  • A53523 ACT 13/32 0.4063 5/16 3/4 7 6 Uncoated 10
    $89.23
  • A53333 ACT 0.1247 0.1247 0.119 7/8 3-1/2 4 Uncoated 13
    $22.02
  • A53319 ACT 0.1247 0.1247 0.119 7/8 3-1/2 4 Uncoated 13
    $20.91
  • A53135 ACT #60 0.0390 0.039 1/2 2-1/2 4 Uncoated 21
    $27.54
  • A52959 ACT #60 0.0400 0.039 1/2 2-1/2 4 Uncoated 14
    $25.03
  • A52945 ACT 0.1247 0.1247 0.119 7/8 3-1/2 4 Uncoated 24
    $18.97
  • A52747 ACT #79 0.0145 0.0145 3/8 3/4 2 Uncoated 8
    $28.91
  • A52718 ACT 0.1247 0.1247 0.119 7/8 3-1/2 4 Uncoated 11
    $18.14
  • A52455 ACT #79 0.0145 0.0145 3/8 3/4 2 Uncoated 5
    $25.94
  • A50150 ACT #59 0.0410 0.0360 3/8 1-1/2 0.0000 0.0070 4 Uncoated 19
    $32.90
  • A78671 ACT 5/64 0.0781 0.0781 1/4 1-3/4 4 Uncoated 19
    $29.65
  • A55781 ACT 13/16 0.8125 1-1/4 5 7 1-1/4 5 Black & Gold 100
    $167.69
  • A53798 ACT 1/4 0.4720 0.5625 1-1/16 2-7/16 0.4060 0.472 .4210 6 Uncoated 39
    $71.91
  • A53755 ACT 3/32 0.0938 0.0938 1-1/4 2-1/2 4 Uncoated 15
    $51.67
  • A53744 ACT 1/2 0.5000 1/2 3-3/4 5-7/8 5 Black & Gold 100
    $65.65
  • A53736 ACT 9/16 0.5625 5-1/8 9 2 0.3430 5 Uncoated 12
    $63.18
  • A53675 ACT #5/0 0.0966 7/64 1-3/16 2-3/16 0.0719 0.0966 4 Uncoated 13
    $49.12
  • A53659 ACT #4 0.215 1/8 .1430 3-7/8 9/16 Uncoated 18
    $31.96
  • A53590 ACT 3/32 0.0938 0.0938 1-1/4 2-1/2 4 Uncoated Available to Order*
    $20.69
  • A53524 ACT 7/16 0.4375 3/8 7/8 7 6 Uncoated 11
    $85.19
  • A53334 ACT 0.1855 0.1855 0.1805 1-1/8 4-1/2 6 Uncoated 12
    $29.23
  • A53320 ACT 0.1855 0.1855 0.1805 1-1/8 4-1/2 6 Uncoated Available to Order*
    $26.72
  • A53136 ACT #59 0.0390 0.039 1/2 2-1/2 4 Uncoated 23
    $27.54
  • A52960 ACT #59 0.0410 0.039 1/2 2-1/2 4 Uncoated 12
    $25.03
  • A52946 ACT 0.1855 0.1855 0.1805 1-1/8 4-1/2 6 Uncoated 15
    $23.97
  • A52748 ACT 1/64 0.0156 0.0156 3/8 3/4 2 Uncoated 22
    $28.91
  • A52719 ACT 0.1855 0.1855 0.1805 1-1/8 4-1/2 6 Uncoated 11
    $16.70
  • A52456 ACT 1/64 0.0156 0.0156 3/8 3/4 2 Uncoated 16
    $26.03
  • A50151 ACT #58 0.0420 0.0370 3/8 1-1/2 0.0000 0.0100 4 Uncoated 18
    $32.90
  • A78794 ACT #60 0.04 0.039 1/2 2-1/2 4 Uncoated 15
    $23.83
  • A78672 ACT 3/32 0.0938 0.0938 1/2 2 4 Uncoated 18
    $29.65
  • A53850 ACT 5/8 0.6250 6-1/8 10 2 0.3750 5 Uncoated 17
    $95.83
  • A53799 ACT 3/8 0.6060 0.7 1-1/16 2-9/16 0.5400 0.606 .5310 6 Uncoated 16
    $81.85
  • A53745 ACT 9/16 0.5625 1/2 3-3/4 5-7/8 5 Black & Gold 75
    $68.44
  • A53697 ACT #4/0 0.1142 1/8 1-5/16 2-5/16 0.0869 0.1142 4 Uncoated 12
    $48.86
  • A53676 ACT #4/0 0.1142 1/8 1-5/16 2-5/16 0.0869 0.1142 4 Uncoated 12
    $49.12
  • A53632 ACT #5 0.205 5/32 .1250 4-1/8 5/8 Uncoated 10
    $23.97
  • A53591 ACT 7/64 0.1094 0.1094 1-1/4 2-1/2 4 Uncoated Available to Order*
    $21.73
  • A53525 ACT 15/32 0.4688 27/64 7/8 8 6 Uncoated 10
    $92.61
  • A53335 ACT 0.187 0.187 0.1805 1-1/8 4-1/2 6 Uncoated 24
    $29.49
  • A53321 ACT 0.187 0.187 0.1805 1-1/8 4-1/2 6 Uncoated 20
    $26.72
  • A53137 ACT #58 0.0390 0.039 1/2 2-1/2 4 Uncoated 12
    $27.80
  • A52947 ACT 0.187 0.187 0.1805 1-1/8 4-1/2 6 Uncoated 46
    $23.97
  • A52749 ACT #78 0.0160 0.016 3/8 7/8 2 Uncoated 11
    $28.91
  • A52720 ACT 0.187 0.187 0.1805 1-1/8 4-1/2 6 Uncoated 20
    $23.22
  • A52457 ACT #78 0.0160 0.016 3/8 7/8 2 Uncoated 5
    $26.03
  • A50152 ACT #57 0.0430 0.0380 3/8 1-1/2 0.0000 0.0100 4 Uncoated 32
    $32.90
  • A78673 ACT 7/64 0.1094 0.1094 5/8 2-1/4 4 Uncoated 30
    $29.65
  • A53800 ACT 1/2 0.7510 0.6875 1-3/8 3-1/8 0.6650 0.751 .5150 6 Uncoated 23
    $102.88
  • A53757 ACT 1/8 0.1250 0.125 1-1/2 3 4 Uncoated 13
    $48.61
  • A53746 ACT 5/8 0.6250 1/2 4-1/4 6-3/8 5 Black & Gold 100
    $76.45
  • A53737 ACT 11/16 0.6875 7-1/8 11-3/4 3 0.3906 5 Uncoated 14
    $101.01
  • A53719 ACT #3/0 0.1302 9/64 1-5/16 2-5/16 0.1029 0.1302 4 Uncoated 4
    $53.81
  • A53698 ACT #3/0 0.1302 9/64 1-5/16 2-5/16 0.1029 0.1302 4 Uncoated 18
    $44.33
  • A53677 ACT #3/0 0.1302 9/64 1-5/16 2-5/16 0.1029 0.1302 4 Uncoated 10
    $49.12
  • A53646 ACT #5 0.221 5/32 .1400 4-1/8 5/8 Uncoated 6
    $23.97
  • A53592 ACT 1/8 0.1250 0.125 1-1/2 3 4 Uncoated Available to Order*
    $19.46
  • A53559 ACT 1/2 0.5000 1 8 1 6 Uncoated 6
    $100.32
  • A53526 ACT 1/2 0.5000 7/16 1 8 6 Uncoated 11
    $124.39
  • A53336 ACT 0.248 0.248 0.2405 1-1/2 6 6 Uncoated 27
    $30.80
  • A53322 ACT 0.248 0.248 0.2405 1-1/2 6 6 Uncoated Available to Order*
    $27.96
  • A53138 ACT #57 0.0390 0.039 1/2 2-1/2 4 Uncoated 23
    $27.80
  • A52962 ACT #57 0.0430 0.039 1/2 2-1/2 4 Uncoated 12
    $25.03
  • A52948 ACT 0.248 0.248 0.2405 1-1/2 6 6 Uncoated 12
    $26.80
  • A52750 ACT #77 0.0180 0.018 3/8 7/8 2 Uncoated 9
    $28.91
  • A52721 ACT 0.248 0.248 0.2405 1-1/2 6 6 Uncoated 12
    $25.28
  • A52458 ACT #77 0.0180 0.018 3/8 7/8 2 Uncoated 13
    $25.94

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

  • Total: items /

Adding your products to cart

View Cart Continue Shopping