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
    A53063 ACT L 0.2900 0.2792 1-1/2 6 6 Uncoated 8
    $35.71
  • A52851 ACT 7/32 0.2188 0.2075 1-1/4 5 6 Uncoated 40
    $31.29
  • A52559 ACT 7/32 0.2188 0.2075 1-1/4 5 6 Uncoated 17
    $26.84
  • A51610 ACT 0.0795 0.0771 3/4 3 4 Uncoated 17
    $23.75
  • A50254 ACT 0.1220 0.1220 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 4
    $41.15
  • A53064 ACT M 0.2950 0.2792 1-1/2 6 6 Uncoated 9
    $35.71
  • A52852 ACT #2 0.2210 0.2173 1-1/2 6 6 Uncoated 68
    $32.28
  • A52560 ACT #2 0.2210 0.2173 1-1/2 6 6 Uncoated 21
    $27.78
  • A51611 ACT 0.08 0.0771 3/4 3 4 Uncoated 22
    $23.75
  • A50255 ACT 0.1230 0.1230 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 23
    $41.15
  • A78765 ACT #21 0.159 0.153 1-1/8 4-1/2 6 Uncoated 2
    $27.66
  • A53241 ACT 7.5mm 0.2792 0.2792 1-1/2 6 6 Uncoated 46
    $45.81
  • A53065 ACT 7.5mm 0.2953 0.2792 1-1/2 6 6 Uncoated 6
    $35.71
  • A52853 ACT #1 0.2280 0.2173 1-1/2 6 6 Uncoated 38
    $32.28
  • A52561 ACT #1 0.2280 0.2173 1-1/2 6 6 Uncoated 33
    $27.78
  • A51612 ACT 0.0805 0.0771 3/4 3 4 Uncoated 44
    $23.75
  • A50256 ACT 0.1235 0.1235 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 9
    $54.46
  • A53242 ACT 19/64 0.2792 0.2792 1-1/2 6 6 Uncoated 7
    $45.65
  • A53066 ACT 19/64 0.2969 0.2792 1-1/2 6 6 Uncoated 12
    $35.71
  • A52854 ACT A 0.2340 0.2265 1-1/2 6 6 Uncoated 16
    $32.28
  • A52562 ACT A 0.2340 0.2265 1-1/2 6 6 Uncoated 17
    $27.78
  • A51613 ACT 0.0815 0.0771 3/4 3 4 Uncoated 17
    $23.75
  • A50257 ACT 0.1240 0.1240 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 29
    $41.15
  • A78766 ACT #20 0.161 0.153 1-1/8 4-1/2 6 Uncoated 14
    $27.66
  • A53243 ACT N 0.2792 0.2792 1-1/2 6 6 Uncoated 11
    $45.65
  • A53067 ACT N 0.3020 0.2792 1-1/2 6 6 Uncoated 7
    $35.71
  • A52855 ACT 15/64 0.2344 0.2265 1-1/2 6 6 Uncoated 10
    $32.28
  • A52563 ACT 15/64 0.2344 0.2265 1-1/2 6 6 Uncoated 23
    $27.78
  • A51614 ACT 0.0825 0.081 3/4 3 4 Uncoated 16
    $23.66
  • A50258 ACT 0.1245 0.1245 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $45.27
  • A53244 ACT 0.3115 O/U 0.2792 0.2792 1-1/2 6 6 Uncoated 22
    $43.41
  • A53068 ACT 0.3115 O/U 0.3115 0.2792 1-1/2 6 6 Uncoated 5
    $33.81
  • A52856 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated 29
    $32.49
  • A52564 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated 57
    $29.27
  • A51615 ACT 0.083 0.081 3/4 3 4 Uncoated 17
    $23.75
  • A50259 ACT 1/8 0.1250 0.1250 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $37.07
  • A78767 ACT #19 0.166 0.1595 1-1/8 4-1/2 6 Uncoated 19
    $27.66
  • A53245 ACT 5/16 0.2792 0.2792 1-1/2 6 6 Uncoated 18
    $41.44
  • A53069 ACT 5/16 0.3125 0.2792 1-1/2 6 6 Uncoated 24
    $32.28
  • A52857 ACT B 0.2380 0.2329 1-1/2 6 6 Uncoated 15
    $32.49
  • A52565 ACT B 0.2380 0.2329 1-1/2 6 6 Uncoated 20
    $29.27
  • A51616 ACT 0.0835 0.081 3/4 3 4 Uncoated 18
    $23.75
  • A50260 ACT 0.1255 0.1255 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 89
    $45.27
  • A53246 ACT 0.3135 O/U 0.2792 0.2792 1-1/2 6 6 Uncoated 21
    $43.41
  • A53070 ACT 0.3135 O/U 0.3135 0.2792 1-1/2 6 6 Uncoated 16
    $33.81
  • A52858 ACT C 0.2420 0.2329 1-1/2 6 6 Uncoated 20
    $32.49
  • A52566 ACT C 0.2420 0.2329 1-1/2 6 6 Uncoated 24
    $29.27
  • A51617 ACT 0.084 0.081 3/4 3 4 Uncoated 29
    $23.75
  • A50261 ACT 0.1260 0.1260 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $41.15
  • A78768 ACT #18 0.1695 0.1595 1-1/8 4-1/2 6 Uncoated 11
    $27.66
  • A53247 ACT 8.0mm 0.2792 0.2792 1-1/2 6 6 Uncoated 20
    $45.81
  • A53071 ACT 8.0mm 0.3150 0.2792 1-1/2 6 6 Uncoated 18
    $35.71
  • A52859 ACT D 0.2460 0.2329 1-1/2 6 6 Uncoated 10
    $29.61
  • A52567 ACT D 0.2460 0.2329 1-1/2 6 6 Uncoated 26
    $29.27
  • A51618 ACT 0.0845 0.081 3/4 3 4 Uncoated 7
    $23.75
  • A50262 ACT 0.1265 0.1265 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $54.46
  • A53248 ACT O 0.2792 0.2792 1-1/2 6 6 Uncoated 10
    $45.65
  • A53072 ACT O 0.3160 0.2792 1-1/2 6 6 Uncoated 14
    $35.71
  • A52860 ACT 0.249 O/U 0.2490 0.2405 1-1/2 6 6 Uncoated 18
    $29.15
  • A52568 ACT 0.249 O/U 0.2490 0.2405 1-1/2 6 6 Uncoated 51
    $27.46
  • A51619 ACT 0.085 0.081 3/4 3 4 Uncoated 26
    $23.75
  • A50263 ACT 0.1270 0.1270 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 88
    $41.15
  • A53249 ACT P 0.2792 0.2792 1-1/2 6 6 Uncoated 18
    $49.52
  • A53073 ACT P 0.3230 0.2792 1-1/2 6 6 Uncoated 13
    $38.18
  • A52861 ACT 1/4 0.2500 0.2405 1-1/2 6 6 Uncoated 100
    $27.70
  • A52569 ACT 1/4 0.2500 0.2405 1-1/2 6 6 Uncoated 100
    $26.01
  • A51620 ACT 0.0855 0.081 3/4 3 4 Uncoated 24
    $23.75
  • A50264 ACT 0.1275 0.1275 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 20
    $54.46
  • A78769 ACT #17 0.173 0.1645 1-1/8 4-1/2 6 Uncoated 13
    $27.66
  • A53250 ACT 21/64 0.2792 0.2792 1-1/2 6 6 Uncoated 22
    $49.52
  • A53074 ACT 21/64 0.3281 0.2792 1-1/2 6 6 Uncoated 7
    $38.18
  • A52862 ACT 0.251 O/U 0.2510 0.2405 1-1/2 6 6 Uncoated 60
    $29.27
  • A52570 ACT 0.251 O/U 0.2510 0.2405 1-1/2 6 6 Uncoated 100
    $27.46
  • A51621 ACT 0.0865 0.081 3/4 3 4 Uncoated 34
    $23.75
  • A50265 ACT 0.1280 0.1280 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 12
    $41.15
  • A53251 ACT Q 0.2792 0.2792 1-1/2 6 6 Uncoated 13
    $49.18
  • A53075 ACT Q 0.3320 0.2792 1-1/2 6 6 Uncoated 12
    $38.18
  • A52863 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 19
    $32.49
  • A52571 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 23
    $29.27
  • A51622 ACT 0.087 0.081 3/4 3 4 Uncoated 14
    $23.75
  • A50266 ACT #30 0.1285 0.1285 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 58
    $41.15
  • A78770 ACT #16 0.177 0.1704 1-1/8 4-1/2 6 Uncoated 10
    $27.66
  • A53252 ACT 8.5mm 0.2792 0.2792 1-1/2 6 6 Uncoated 9
    $49.18
  • A53076 ACT 8.5mm 0.3346 0.2792 1-1/2 6 6 Uncoated 9
    $38.18
  • A52864 ACT F 0.2570 0.2485 1-1/2 6 6 Uncoated 20
    $32.49
  • A52572 ACT F 0.2570 0.2485 1-1/2 6 6 Uncoated 54
    $29.27
  • A51623 ACT 0.0875 0.081 3/4 3 4 Uncoated 5
    $23.66
  • A50267 ACT 0.1290 0.1290 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 24
    $41.15
  • A53253 ACT R 0.2792 0.2792 1-1/2 6 6 Uncoated Available to Order*
    $49.18
  • A53077 ACT R 0.3390 0.2792 1-1/2 6 6 Uncoated 20
    $38.18
  • A52865 ACT G 0.2610 0.2485 1-1/2 6 6 Uncoated 24
    $32.49
  • A52573 ACT G 0.2610 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $29.27
  • A51624 ACT 0.088 0.081 3/4 3 4 Uncoated 10
    $23.75
  • A50268 ACT 0.1300 0.1300 5/8 2-1/2 1-1/8 0.0150 4 Uncoated 100
    $41.15
  • A78771 ACT 4.5mm 0.1772 0.1704 1-1/8 4-1/2 6 Uncoated 7
    $27.66
  • A53254 ACT 11/32 0.2792 0.2792 1-1/2 6 6 Uncoated 16
    $49.18
  • A53078 ACT 11/32 0.3438 0.2792 1-1/2 6 6 Uncoated 18
    $38.18
  • A52866 ACT 17/64 0.2656 0.2485 1-1/2 6 6 Uncoated 18
    $43.92
  • A52574 ACT 17/64 0.2656 0.2485 1-1/2 6 6 Uncoated 14
    $32.45
  • A51625 ACT 0.0885 0.081 3/4 3 4 Uncoated 11
    $23.75

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

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