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
    A52842 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 20
    $30.23
  • A52550 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 89
    $25.94
  • A51601 ACT 0.074 0.072 3/4 3 4 Uncoated 19
    $22.97
  • A50245 ACT 0.1140 0.1140 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $34.73
  • A78760 ACT #24 0.152 0.146 1 4 4 Uncoated 13
    $24.74
  • A53231 ACT G 0.2485 0.2485 1-1/2 6 6 Uncoated 8
    $35.63
  • A53055 ACT G 0.2610 0.2485 1-1/2 6 6 Uncoated 6
    $30.98
  • A52843 ACT #8 0.1990 0.1895 1-1/4 5 6 Uncoated 22
    $30.23
  • A52551 ACT #8 0.1990 0.1895 1-1/4 5 6 Uncoated 70
    $25.94
  • A51602 ACT 0.0745 0.072 3/4 3 4 Uncoated 11
    $22.89
  • A50246 ACT 0.1150 0.1150 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 23
    $34.73
  • A53232 ACT 17/64 0.2485 0.2485 1-1/2 6 6 Uncoated 13
    $44.25
  • A53056 ACT 17/64 0.2656 0.2485 1-1/2 6 6 Uncoated 11
    $34.51
  • A52844 ACT #7 0.2010 0.1895 1-1/4 5 6 Uncoated 13
    $30.23
  • A52552 ACT #7 0.2010 0.1895 1-1/4 5 6 Uncoated 29
    $25.94
  • A51603 ACT 0.075 0.072 3/4 3 4 Uncoated 19
    $22.97
  • A50247 ACT #32 0.1160 0.1160 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 17
    $34.77
  • A78761 ACT #23 0.154 0.146 1 4 4 Uncoated 3
    $24.74
  • A53233 ACT H 0.2485 0.2485 1-1/2 6 6 Uncoated 6
    $44.12
  • A53057 ACT H 0.2660 0.2485 1-1/2 6 6 Uncoated 8
    $34.51
  • A52845 ACT 13/64 0.2031 0.1945 1-1/4 5 6 Uncoated 20
    $30.23
  • A52553 ACT 13/64 0.2031 0.1945 1-1/4 5 6 Uncoated 24
    $25.94
  • A51604 ACT 0.0755 0.072 3/4 3 4 Uncoated 11
    $22.97
  • A50248 ACT 0.1170 0.1170 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 16
    $36.91
  • A53234 ACT I 0.2485 0.2485 1-1/2 6 6 Uncoated 8
    $44.25
  • A53058 ACT I 0.2720 0.2485 1-1/2 6 6 Uncoated 11
    $34.51
  • A52846 ACT #6 0.2040 0.1945 1-1/4 5 6 Uncoated 5
    $30.23
  • A52554 ACT #6 0.2040 0.1945 1-1/4 5 6 Uncoated 15
    $25.94
  • A51605 ACT 0.0765 0.072 3/4 3 4 Uncoated 22
    $22.97
  • A50249 ACT 0.1180 0.1180 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 19
    $36.91
  • A78762 ACT 5/32 0.1563 0.151 1 4 4 Uncoated 7
    $24.82
  • A53235 ACT 7.0mm 0.2485 0.2485 1-1/2 6 6 Uncoated 14
    $44.12
  • A53059 ACT 7.0mm 0.2756 0.2485 1-1/2 6 6 Uncoated 11
    $34.51
  • A52847 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 11
    $30.23
  • A52555 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 17
    $25.94
  • A51606 ACT 0.077 0.072 3/4 3 4 Uncoated 18
    $22.97
  • A50250 ACT 3.0mm 0.1181 3.000 5/8 2-1/4 28mm 0.0150 4 Uncoated 16
    $33.86
  • A53236 ACT J 0.2485 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $44.25
  • A53060 ACT J 0.2770 0.2485 1-1/2 6 6 Uncoated 3
    $34.51
  • A52848 ACT #4 0.2090 0.2016 1-1/4 5 6 Uncoated 8
    $30.23
  • A52556 ACT #4 0.2090 0.2016 1-1/4 5 6 Uncoated 24
    $25.94
  • A51607 ACT 0.0775 0.072 3/4 3 4 Uncoated 21
    $22.97
  • A50251 ACT 0.1190 0.1190 5/8 2-1/4 1-1/8 0.0150 4 Uncoated Available to Order*
    $36.91
  • A78763 ACT #22 0.157 0.151 1 4 6 Uncoated 3
    $24.74
  • A53237 ACT K 0.2485 0.2485 1-1/2 6 6 Uncoated 14
    $44.12
  • A53061 ACT K 0.2810 0.2485 1-1/2 6 6 Uncoated 25
    $34.51
  • A52849 ACT #3 0.2130 0.2075 1-1/4 5 6 Uncoated 8
    $30.23
  • A52557 ACT #3 0.2130 0.2075 1-1/4 5 6 Uncoated 21
    $25.94
  • A51608 ACT 0.078 0.072 3/4 3 4 Uncoated 29
    $22.97
  • A50252 ACT #31 0.1200 0.1200 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 29
    $34.77
  • A53238 ACT 9/32 0.2485 0.2485 1-1/2 6 6 Uncoated 6
    $41.93
  • A53062 ACT 9/32 0.2813 0.2485 1-1/2 6 6 Uncoated 16
    $32.66
  • A52850 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated 11
    $30.23
  • A52558 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated 12
    $25.94
  • A51609 ACT 0.079 0.0771 3/4 3 4 Uncoated 35
    $22.97
  • A50253 ACT 0.1210 0.1210 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 17
    $36.91
  • A78764 ACT 4.0mm 0.1575 0.151 1 4 6 Uncoated 3
    $24.82
  • A53239 ACT L 0.2792 0.2792 1-1/2 6 6 Uncoated 9
    $44.12
  • A53063 ACT L 0.2900 0.2792 1-1/2 6 6 Uncoated 8
    $34.51
  • A52851 ACT 7/32 0.2188 0.2075 1-1/4 5 6 Uncoated 40
    $30.23
  • A52559 ACT 7/32 0.2188 0.2075 1-1/4 5 6 Uncoated 27
    $25.94
  • A51610 ACT 0.0795 0.0771 3/4 3 4 Uncoated 20
    $22.97
  • A50254 ACT 0.1220 0.1220 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 10
    $36.91
  • A53064 ACT M 0.2950 0.2792 1-1/2 6 6 Uncoated 9
    $34.51
  • A52852 ACT #2 0.2210 0.2173 1-1/2 6 6 Uncoated 15
    $31.22
  • A52560 ACT #2 0.2210 0.2173 1-1/2 6 6 Uncoated 25
    $26.85
  • A51611 ACT 0.08 0.0771 3/4 3 4 Uncoated 22
    $22.97
  • A50255 ACT 0.1230 0.1230 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 24
    $36.91
  • A78765 ACT #21 0.159 0.153 1-1/8 4-1/2 6 Uncoated 2
    $25.44
  • A53241 ACT 7.5mm 0.2792 0.2792 1-1/2 6 6 Uncoated 46
    $44.25
  • A53065 ACT 7.5mm 0.2953 0.2792 1-1/2 6 6 Uncoated 6
    $34.51
  • A52853 ACT #1 0.2280 0.2173 1-1/2 6 6 Uncoated 38
    $31.22
  • A52561 ACT #1 0.2280 0.2173 1-1/2 6 6 Uncoated 19
    $26.85
  • A51612 ACT 0.0805 0.0771 3/4 3 4 Uncoated 46
    $22.97
  • A50256 ACT 0.1235 0.1235 5/8 2-1/4 1-1/8 0.0150 4 Uncoated Available to Order*
    $48.82
  • A53242 ACT 19/64 0.2792 0.2792 1-1/2 6 6 Uncoated 7
    $44.12
  • A53066 ACT 19/64 0.2969 0.2792 1-1/2 6 6 Uncoated 12
    $34.51
  • A52854 ACT A 0.2340 0.2265 1-1/2 6 6 Uncoated 16
    $31.22
  • A52562 ACT A 0.2340 0.2265 1-1/2 6 6 Uncoated 18
    $26.85
  • A51613 ACT 0.0815 0.0771 3/4 3 4 Uncoated 17
    $22.97
  • A50257 ACT 0.1240 0.1240 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 32
    $36.91
  • A78766 ACT #20 0.161 0.153 1-1/8 4-1/2 6 Uncoated 3
    $25.44
  • A53243 ACT N 0.2792 0.2792 1-1/2 6 6 Uncoated 11
    $44.12
  • A53067 ACT N 0.3020 0.2792 1-1/2 6 6 Uncoated 7
    $34.51
  • A52855 ACT 15/64 0.2344 0.2265 1-1/2 6 6 Uncoated 10
    $31.22
  • A52563 ACT 15/64 0.2344 0.2265 1-1/2 6 6 Uncoated 23
    $26.85
  • A51614 ACT 0.0825 0.081 3/4 3 4 Uncoated 16
    $22.89
  • A50258 ACT 0.1245 0.1245 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 69
    $40.58
  • A53244 ACT 0.3115 O/U 0.2792 0.2792 1-1/2 6 6 Uncoated 22
    $41.93
  • A53068 ACT 0.3115 O/U 0.3115 0.2792 1-1/2 6 6 Uncoated 6
    $32.66
  • A52856 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated 29
    $31.39
  • A52564 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated 85
    $28.29
  • A51615 ACT 0.083 0.081 3/4 3 4 Uncoated 20
    $22.97
  • A50259 ACT 1/8 0.1250 0.1250 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $33.24
  • A78767 ACT #19 0.166 0.1595 1-1/8 4-1/2 6 Uncoated 19
    $25.44
  • A53245 ACT 5/16 0.2792 0.2792 1-1/2 6 6 Uncoated 19
    $40.05
  • A53069 ACT 5/16 0.3125 0.2792 1-1/2 6 6 Uncoated 29
    $31.22
  • A52857 ACT B 0.2380 0.2329 1-1/2 6 6 Uncoated 15
    $31.39
  • A52565 ACT B 0.2380 0.2329 1-1/2 6 6 Uncoated 16
    $28.29
  • A51616 ACT 0.0835 0.081 3/4 3 4 Uncoated 18
    $22.97

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

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