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
    A53032 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 7
    $30.92
  • A52820 ACT #23 0.1540 0.146 1 4 4 Uncoated 26
    $24.45
  • A52528 ACT #23 0.1540 0.146 1 4 4 Uncoated 15
    $22.60
  • A51579 ACT 0.0605 0.0585 1/2 2-1/2 4 Uncoated 100
    $26.55
  • A50223 ACT 0.0970 0.0970 5/8 2 1-1/8 0.0150 4 Uncoated 21
    $38.72
  • A78828 ACT #31 0.12 0.112 7/8 3-1/2 4 Uncoated 13
    $21.73
  • A53209 ACT #8 0.1895 0.1895 1-1/4 5 6 Uncoated 100
    $34.18
  • A53033 ACT #8 0.1990 0.1895 1-1/4 5 6 Uncoated 5
    $30.92
  • A52821 ACT 5/32 0.1563 0.151 1 4 4 Uncoated 13
    $24.45
  • A52529 ACT 5/32 0.1562 0.151 1 4 4 Uncoated 60
    $22.60
  • A51580 ACT 0.061 0.0585 1/2 2-1/2 4 Uncoated 23
    $26.55
  • A50224 ACT #40 0.0980 0.0980 5/8 2 1-1/8 0.0150 4 Uncoated 23
    $36.69
  • A53210 ACT #7 0.1895 0.1895 1-1/4 5 6 Uncoated 6
    $34.18
  • A53034 ACT #7 0.2010 0.1895 1-1/4 5 6 Uncoated 13
    $30.92
  • A52822 ACT #22 0.1570 0.151 1 4 6 Uncoated 23
    $24.45
  • A52530 ACT #22 0.1570 0.151 1 4 6 Uncoated 34
    $22.60
  • A51581 ACT 0.0615 0.0585 1/2 2-1/2 4 Uncoated 85
    $26.55
  • A50225 ACT 2.5mm 0.0984 2.500 5/8 2 38mm 0.0150 4 Uncoated 17
    $38.72
  • A78829 ACT .124 O/U 0.124 0.119 7/8 3-1/2 4 Uncoated 13
    $21.73
  • A53211 ACT 13/64 0.1945 0.1945 1-1/4 5 6 Uncoated 10
    $34.18
  • A53035 ACT 13/64 0.2031 0.1945 1-1/4 5 6 Uncoated 16
    $30.92
  • A52823 ACT 4.0mm 0.1575 0.151 1 4 6 Uncoated 16
    $24.45
  • A52531 ACT 4.0mm 0.1575 0.151 1 4 6 Uncoated 88
    $22.60
  • A51582 ACT 0.062 0.0585 1/2 2-1/2 4 Uncoated 100
    $26.55
  • A50226 ACT 0.0990 0.0990 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 47
    $38.72
  • A53212 ACT #6 0.1945 0.1945 1-1/4 5 6 Uncoated 6
    $34.18
  • A53036 ACT #6 0.2040 0.1945 1-1/4 5 6 Uncoated 16
    $30.92
  • A52824 ACT #21 0.1590 0.153 1-1/8 4-1/2 6 Uncoated 89
    $25.94
  • A52532 ACT #21 0.1590 0.153 1-1/8 4-1/2 6 Uncoated 22
    $24.13
  • A51583 ACT 0.063 0.0585 1/2 2-1/2 4 Uncoated 100
    $23.75
  • A50227 ACT #39 0.0995 0.0995 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 13
    $36.69
  • A53213 ACT #5 0.2016 0.2016 1-1/4 5 6 Uncoated 4
    $34.18
  • A53037 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 24
    $30.92
  • A52825 ACT #20 0.1610 0.153 1-1/8 4-1/2 6 Uncoated 13
    $25.94
  • A52533 ACT #20 0.1610 0.153 1-1/8 4-1/2 6 Uncoated 74
    $24.13
  • A51584 ACT 0.064 0.066 3/4 3 4 Uncoated 60
    $23.75
  • A50228 ACT 0.1000 0.1000 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 40
    $38.72
  • A78752 ACT .126 O/U 0.126 0.119 7/8 3-1/2 4 Uncoated 11
    $21.73
  • A53214 ACT #4 0.2016 0.2016 1-1/4 5 6 Uncoated 78
    $34.18
  • A53038 ACT #4 0.2090 0.2016 1-1/4 5 6 Uncoated 13
    $30.92
  • A52826 ACT #19 0.1660 0.1595 1-1/8 4-1/2 6 Uncoated 69
    $25.94
  • A52534 ACT #19 0.1660 0.1595 1-1/8 4-1/2 6 Uncoated 25
    $24.13
  • A51585 ACT 0.0645 0.066 3/4 3 4 Uncoated 31
    $23.75
  • A50229 ACT 0.1010 0.1010 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 9
    $38.72
  • A53215 ACT #3 0.2075 0.2075 1-1/4 5 6 Uncoated 7
    $34.18
  • A53039 ACT #3 0.2130 0.2075 1-1/4 5 6 Uncoated 19
    $30.92
  • A52827 ACT #18 0.1695 0.1595 1-1/8 4-1/2 6 Uncoated 13
    $25.94
  • A52535 ACT #18 0.1695 0.1595 1-1/8 4-1/2 6 Uncoated 15
    $24.13
  • A51586 ACT 0.065 0.066 3/4 3 4 Uncoated 59
    $23.75
  • A50230 ACT #38 0.1015 0.1015 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 17
    $36.69
  • A78753 ACT #30 0.1285 0.119 7/8 3-1/2 4 Uncoated 6
    $21.73
  • A53216 ACT 5.5mm 0.2075 0.2075 1-1/4 5 6 Uncoated 18
    $34.18
  • A53040 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated 10
    $30.92
  • A52828 ACT 11/64 0.1719 0.1645 1-1/8 4-1/2 6 Uncoated 8
    $25.94
  • A52536 ACT 11/64 0.1719 0.1645 1-1/8 4-1/2 6 Uncoated 8
    $24.13
  • A51587 ACT 0.0655 0.066 3/4 3 4 Uncoated 32
    $23.75
  • A50231 ACT 0.1020 0.1020 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 12
    $38.72
  • A53217 ACT 7/32 0.2075 0.2075 1-1/4 5 6 Uncoated 12
    $34.18
  • A53041 ACT 7/32 0.2188 0.2075 1-1/4 5 6 Uncoated 25
    $30.92
  • A52829 ACT #17 0.1730 0.1645 1-1/8 4-1/2 6 Uncoated 29
    $25.94
  • A52537 ACT #17 0.1730 0.1645 1-1/8 4-1/2 6 Uncoated 100
    $24.13
  • A51588 ACT 0.066 0.066 3/4 3 4 Uncoated 43
    $23.75
  • A50232 ACT 0.1030 0.1030 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 38
    $38.72
  • A78754 ACT #29 0.136 0.1275 1 4 4 Uncoated 14
    $25.90
  • A53218 ACT #2 0.2173 0.2173 1-1/2 6 6 Uncoated 16
    $35.21
  • A53042 ACT #2 0.2210 0.2173 1-1/2 6 6 Uncoated 8
    $31.87
  • A52830 ACT #16 0.1770 0.1704 1-1/8 4-1/2 6 Uncoated 100
    $25.94
  • A52538 ACT #16 0.1770 0.1704 1-1/8 4-1/2 6 Uncoated 28
    $24.13
  • A51589 ACT 0.0665 0.066 3/4 3 4 Uncoated 55
    $23.75
  • A50233 ACT #37 0.1040 0.1040 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 24
    $36.69
  • A53219 ACT #1 0.2173 0.2173 1-1/2 6 6 Uncoated 12
    $35.21
  • A52831 ACT 4.5mm 0.1772 0.1704 1-1/8 4-1/2 6 Uncoated 16
    $25.94
  • A52539 ACT 4.5mm 0.1772 0.1704 1-1/8 4-1/2 6 Uncoated 16
    $24.13
  • A51590 ACT 0.0675 0.066 3/4 3 4 Uncoated 18
    $23.75
  • A50234 ACT 0.1050 0.1050 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 15
    $38.72
  • A78755 ACT 3.5mm 0.1378 0.135 1 4 4 Uncoated 3
    $25.90
  • A53220 ACT A 0.2265 0.2265 1-1/2 6 6 Uncoated 18
    $35.30
  • A53044 ACT A 0.2340 0.2265 1-1/2 6 6 Uncoated 12
    $31.87
  • A52832 ACT #15 0.1800 0.1755 1-1/8 4-1/2 6 Uncoated 21
    $25.94
  • A52540 ACT #15 0.1800 0.1755 1-1/8 4-1/2 6 Uncoated 46
    $24.13
  • A51591 ACT 0.068 0.066 3/4 3 4 Uncoated 24
    $23.75
  • A50235 ACT 0.1060 0.1060 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 1
    $38.72
  • A53221 ACT 15/64 0.2265 0.2265 1-1/2 6 6 Uncoated 16
    $35.30
  • A53045 ACT 15/64 0.2344 0.2265 1-1/2 6 6 Uncoated 9
    $31.87
  • A52833 ACT #14 0.1820 0.1755 1-1/8 4-1/2 6 Uncoated 17
    $25.94
  • A52541 ACT #14 0.1820 0.1755 1-1/8 4-1/2 6 Uncoated 100
    $24.13
  • A51592 ACT 0.0685 0.066 3/4 3 4 Uncoated 32
    $23.75
  • A50236 ACT #36 0.1065 0.1065 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 15
    $36.69
  • A78756 ACT #28 0.1405 0.135 1 4 4 Uncoated 10
    $25.90
  • A53222 ACT 6.0mm 0.2265 0.2265 1-1/2 6 6 Uncoated 21
    $36.85
  • A53046 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated 19
    $32.20
  • A52834 ACT #13 0.1850 0.1805 1-1/8 4-1/2 6 Uncoated 18
    $25.94
  • A52542 ACT #13 0.1850 0.1805 1-1/8 4-1/2 6 Uncoated 23
    $24.13
  • A51593 ACT 0.069 0.066 3/4 3 4 Uncoated 40
    $23.75
  • A50237 ACT 0.1070 0.1070 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 14
    $38.72
  • A53223 ACT B 0.2329 0.2329 1-1/2 6 6 Uncoated 7
    $36.85
  • A53047 ACT B 0.2380 0.2329 1-1/2 6 6 Uncoated 5
    $32.20
  • A52835 ACT 0.1865 O/U 0.1865 0.1805 1-1/8 4-1/2 6 Uncoated 15
    $25.94
  • A52543 ACT 0.1865 O/U 0.1865 0.1805 1-1/8 4-1/2 6 Uncoated 43
    $24.13
  • A51594 ACT 0.0695 0.066 3/4 3 4 Uncoated 16
    $23.75
  • Total: items /

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