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
    A50238 ACT 0.1080 0.1080 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 74
    $38.72
  • A53224 ACT C 0.2329 0.2329 1-1/2 6 6 Uncoated 15
    $36.85
  • A53048 ACT C 0.2420 0.2329 1-1/2 6 6 Uncoated 7
    $32.04
  • A52836 ACT 3/16 0.1875 0.1805 1-1/8 4-1/2 6 Uncoated 64
    $24.94
  • A52544 ACT 3/16 0.1875 0.1805 1-1/8 4-1/2 6 Uncoated 100
    $21.73
  • A51595 ACT 0.0705 0.066 3/4 3 4 Uncoated 16
    $23.75
  • A50239 ACT 0.1090 0.1090 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 20
    $40.29
  • A78757 ACT #27 0.144 0.135 1 4 4 Uncoated 14
    $25.90
  • A53225 ACT D 0.2329 0.2329 1-1/2 6 6 Uncoated 8
    $33.65
  • A53049 ACT D 0.2460 0.2329 1-1/2 6 6 Uncoated 13
    $32.20
  • A52837 ACT 0.1885 O/U 0.1885 0.1805 1-1/8 4-1/2 6 Uncoated 25
    $25.94
  • A52545 ACT 0.1885 O/U 0.1885 0.1805 1-1/8 4-1/2 6 Uncoated 36
    $24.13
  • A51596 ACT 0.071 0.066 3/4 3 4 Uncoated 21
    $23.75
  • A50240 ACT 7/64 0.1094 0.1094 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 20
    $35.01
  • A53226 ACT 0.249 O/U 0.2405 0.2405 1-1/2 6 6 Uncoated 21
    $39.58
  • A53050 ACT 0.249 O/U 0.2490 0.2405 1-1/2 6 6 Uncoated 8
    $34.26
  • A52838 ACT #12 0.1890 0.1805 1-1/8 4-1/2 6 Uncoated 18
    $25.94
  • A52546 ACT #12 0.1890 0.1805 1-1/8 4-1/2 6 Uncoated 40
    $24.13
  • A51597 ACT 0.0715 0.066 3/4 3 4 Uncoated 23
    $23.75
  • A50241 ACT #35 0.1100 0.1100 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 19
    $36.69
  • A78758 ACT #26 0.147 0.143 1 4 4 Uncoated 9
    $25.90
  • A53227 ACT 1/4 0.2405 0.2405 1-1/2 6 6 Uncoated 22
    $31.41
  • A53051 ACT 1/4 0.2500 0.2405 1-1/2 6 6 Uncoated 84
    $28.57
  • A52839 ACT #11 0.1910 0.186 1-1/4 5 6 Uncoated 22
    $31.29
  • A52547 ACT #11 0.1910 0.186 1-1/4 5 6 Uncoated 48
    $26.84
  • A51598 ACT 0.072 0.066 3/4 3 4 Uncoated 18
    $23.75
  • A50242 ACT #34 0.1110 0.1110 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 58
    $36.69
  • A53228 ACT 0.251 O/U 0.2405 0.2405 1-1/2 6 6 Uncoated 22
    $39.58
  • A53052 ACT 0.251 O/U 0.2510 0.2405 1-1/2 6 6 Uncoated 28
    $34.26
  • A52840 ACT #10 0.1935 0.186 1-1/4 5 6 Uncoated 22
    $31.29
  • A52548 ACT #10 0.1935 0.186 1-1/4 5 6 Uncoated 25
    $26.84
  • A51599 ACT 0.0725 0.066 3/4 3 4 Uncoated 18
    $23.75
  • A50243 ACT 0.1120 0.1120 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 15
    $38.72
  • A78759 ACT #25 0.1495 0.143 1 4 4 Uncoated 3
    $25.90
  • A53229 ACT 6.5mm 0.2405 0.2405 1-1/2 6 6 Uncoated 10
    $36.85
  • A53053 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 6
    $32.04
  • A52841 ACT #9 0.1960 0.1895 1-1/4 5 6 Uncoated 11
    $31.29
  • A52549 ACT #9 0.1960 0.1895 1-1/4 5 6 Uncoated 55
    $26.84
  • A51600 ACT 0.0735 0.072 3/4 3 4 Uncoated 17
    $23.75
  • A50244 ACT #33 0.1130 0.1130 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 20
    $36.69
  • A53230 ACT F 0.2485 0.2485 1-1/2 6 6 Uncoated 20
    $36.85
  • A53054 ACT F 0.2570 0.2485 1-1/2 6 6 Uncoated 17
    $32.20
  • A52842 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 20
    $31.29
  • A52550 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 80
    $26.84
  • A51601 ACT 0.074 0.072 3/4 3 4 Uncoated 14
    $23.75
  • A50245 ACT 0.1140 0.1140 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $38.72
  • A78760 ACT #24 0.152 0.146 1 4 4 Uncoated 13
    $26.88
  • A53231 ACT G 0.2485 0.2485 1-1/2 6 6 Uncoated 8
    $36.85
  • A53055 ACT G 0.2610 0.2485 1-1/2 6 6 Uncoated 6
    $32.04
  • A52843 ACT #8 0.1990 0.1895 1-1/4 5 6 Uncoated 21
    $31.29
  • A52551 ACT #8 0.1990 0.1895 1-1/4 5 6 Uncoated 67
    $26.84
  • A51602 ACT 0.0745 0.072 3/4 3 4 Uncoated 11
    $23.66
  • A50246 ACT 0.1150 0.1150 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 23
    $38.72
  • A53232 ACT 17/64 0.2485 0.2485 1-1/2 6 6 Uncoated 13
    $45.81
  • A53056 ACT 17/64 0.2656 0.2485 1-1/2 6 6 Uncoated 11
    $35.71
  • A52844 ACT #7 0.2010 0.1895 1-1/4 5 6 Uncoated 22
    $31.29
  • A52552 ACT #7 0.2010 0.1895 1-1/4 5 6 Uncoated 29
    $26.84
  • A51603 ACT 0.075 0.072 3/4 3 4 Uncoated 15
    $23.75
  • A50247 ACT #32 0.1160 0.1160 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 17
    $38.76
  • A78761 ACT #23 0.154 0.146 1 4 4 Uncoated 3
    $26.88
  • A53233 ACT H 0.2485 0.2485 1-1/2 6 6 Uncoated 6
    $45.65
  • A53057 ACT H 0.2660 0.2485 1-1/2 6 6 Uncoated 8
    $35.71
  • A52845 ACT 13/64 0.2031 0.1945 1-1/4 5 6 Uncoated 19
    $31.29
  • A52553 ACT 13/64 0.2031 0.1945 1-1/4 5 6 Uncoated 24
    $26.84
  • A51604 ACT 0.0755 0.072 3/4 3 4 Uncoated 8
    $23.75
  • A50248 ACT 0.1170 0.1170 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 13
    $41.15
  • A53234 ACT I 0.2485 0.2485 1-1/2 6 6 Uncoated 7
    $45.81
  • A53058 ACT I 0.2720 0.2485 1-1/2 6 6 Uncoated 11
    $35.71
  • A52846 ACT #6 0.2040 0.1945 1-1/4 5 6 Uncoated 5
    $31.29
  • A52554 ACT #6 0.2040 0.1945 1-1/4 5 6 Uncoated 15
    $26.84
  • A51605 ACT 0.0765 0.072 3/4 3 4 Uncoated 22
    $23.75
  • A50249 ACT 0.1180 0.1180 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 19
    $41.15
  • A78762 ACT 5/32 0.1563 0.151 1 4 4 Uncoated 7
    $26.96
  • A53235 ACT 7.0mm 0.2485 0.2485 1-1/2 6 6 Uncoated 14
    $45.65
  • A53059 ACT 7.0mm 0.2756 0.2485 1-1/2 6 6 Uncoated 10
    $35.71
  • A52847 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 11
    $31.29
  • A52555 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 17
    $26.84
  • A51606 ACT 0.077 0.072 3/4 3 4 Uncoated 17
    $23.75
  • A50250 ACT 3.0mm 0.1181 3.000 5/8 2-1/4 28mm 0.0150 4 Uncoated 16
    $37.77
  • A53236 ACT J 0.2485 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $45.81
  • A53060 ACT J 0.2770 0.2485 1-1/2 6 6 Uncoated 3
    $35.71
  • A52848 ACT #4 0.2090 0.2016 1-1/4 5 6 Uncoated 16
    $31.29
  • A52556 ACT #4 0.2090 0.2016 1-1/4 5 6 Uncoated 21
    $26.84
  • A51607 ACT 0.0775 0.072 3/4 3 4 Uncoated 17
    $23.75
  • A50251 ACT 0.1190 0.1190 5/8 2-1/4 1-1/8 0.0150 4 Uncoated Available to Order*
    $41.15
  • A78763 ACT #22 0.157 0.151 1 4 6 Uncoated 3
    $26.88
  • A53237 ACT K 0.2485 0.2485 1-1/2 6 6 Uncoated 14
    $45.65
  • A53061 ACT K 0.2810 0.2485 1-1/2 6 6 Uncoated 25
    $35.71
  • A52849 ACT #3 0.2130 0.2075 1-1/4 5 6 Uncoated 17
    $31.29
  • A52557 ACT #3 0.2130 0.2075 1-1/4 5 6 Uncoated 18
    $26.84
  • A51608 ACT 0.078 0.072 3/4 3 4 Uncoated 45
    $23.75
  • A50252 ACT #31 0.1200 0.1200 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 26
    $38.76
  • A53238 ACT 9/32 0.2485 0.2485 1-1/2 6 6 Uncoated 6
    $43.41
  • A53062 ACT 9/32 0.2813 0.2485 1-1/2 6 6 Uncoated 16
    $33.81
  • A52850 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated 11
    $31.29
  • A52558 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated 6
    $26.84
  • A51609 ACT 0.079 0.0771 3/4 3 4 Uncoated 44
    $23.75
  • A50253 ACT 0.1210 0.1210 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 17
    $41.15
  • A78764 ACT 4.0mm 0.1575 0.151 1 4 6 Uncoated 3
    $26.96
  • A53239 ACT L 0.2792 0.2792 1-1/2 6 6 Uncoated 9
    $45.65

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

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