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
    A50623 ACT 0.4340 0.4340 1-3/8 4 2-1/4 0.0450 6 Uncoated 10
    $168.79
  • A51980 ACT 0.2985 0.2792 1-1/2 6 6 Uncoated 7
    $33.44
  • A50624 ACT 0.4350 0.4350 1-3/8 4 2-1/4 0.0450 6 Uncoated 12
    $168.79
  • A51981 ACT 0.299 0.2792 1-1/2 6 6 Uncoated 8
    $33.44
  • A50625 ACT 0.4360 0.4360 1-3/8 4 2-1/4 0.0450 6 Uncoated 100
    $168.79
  • A51982 ACT 0.2995 0.2792 1-1/2 6 6 Uncoated 9
    $33.44
  • A50626 ACT 0.4365 0.4365 1-3/8 4 2-1/4 0.0450 6 Uncoated 19
    $168.79
  • A51983 ACT 0.3 0.2792 1-1/2 6 6 Uncoated 15
    $33.44
  • A50627 ACT 0.4370 0.4370 1-3/8 4 2-1/4 0.0450 6 Uncoated 17
    $168.79
  • A51984 ACT 0.3005 0.2792 1-1/2 6 6 Uncoated 19
    $33.44
  • A50628 ACT 7/16 0.4375 0.4375 1-3/8 4 2-1/4 0.0450 6 Uncoated 31
    $139.73
  • A51985 ACT 0.301 0.2792 1-1/2 6 6 Uncoated 20
    $33.44
  • A50629 ACT 0.4380 0.4380 1-3/8 4 2-1/4 0.0450 6 Uncoated 9
    $168.79
  • A51986 ACT 0.3015 0.2792 1-1/2 6 6 Uncoated 13
    $33.44
  • A50630 ACT 0.4385 0.4385 1-3/8 4 2-1/4 0.0450 6 Uncoated 17
    $201.77
  • A51987 ACT 0.3025 0.2792 1-1/2 6 6 Uncoated 15
    $33.44
  • A50631 ACT 0.4390 0.4390 1-3/8 4 2-1/4 0.0450 6 Uncoated 30
    $168.79
  • A51988 ACT 0.303 0.2792 1-1/2 6 6 Uncoated 14
    $33.44
  • A50632 ACT 0.4400 0.4400 1-3/8 4 2-1/4 0.0450 6 Uncoated 23
    $168.79
  • A51989 ACT 0.3035 0.2792 1-1/2 6 6 Uncoated 11
    $33.44
  • A50633 ACT 0.4410 0.4410 1-3/8 4 2-1/4 0.0450 6 Uncoated 10
    $192.46
  • A51990 ACT 0.304 0.2792 1-1/2 6 6 Uncoated 18
    $33.44
  • A50634 ACT 0.4420 0.4420 1-3/8 4 2-1/4 0.0450 6 Uncoated 5
    $192.46
  • A51991 ACT 0.3045 0.2792 1-1/2 6 6 Uncoated 9
    $33.44
  • A50635 ACT 0.4430 0.4430 1-3/8 4 2-1/4 0.0450 6 Uncoated 12
    $192.46
  • A51992 ACT 0.305 0.2792 1-1/2 6 6 Uncoated 10
    $33.44
  • A50636 ACT 0.4440 0.4440 1-3/8 4 2-1/4 0.0450 6 Uncoated 18
    $191.60
  • A51993 ACT 0.3055 0.2792 1-1/2 6 6 Uncoated 16
    $33.44
  • A50637 ACT 0.4450 0.4450 1-3/8 4 2-1/4 0.0450 6 Uncoated 14
    $192.46
  • A51994 ACT 0.306 0.2792 1-1/2 6 6 Uncoated 16
    $33.44
  • A50638 ACT 0.4460 0.4460 1-3/8 4 2-1/4 0.0450 6 Uncoated 5
    $191.60
  • A51995 ACT 0.3065 0.2792 1-1/2 6 6 Uncoated 15
    $33.44
  • A50639 ACT 0.4470 0.4470 1-3/8 4 2-1/4 0.0450 6 Uncoated 11
    $191.60
  • A51996 ACT 0.307 0.2792 1-1/2 6 6 Uncoated 12
    $33.44
  • A50640 ACT 0.4480 0.4480 1-3/8 4 2-1/4 0.0450 6 Uncoated 14
    $191.60
  • A51997 ACT 0.3075 0.2792 1-1/2 6 6 Uncoated 5
    $33.44
  • A50641 ACT 0.4490 0.4490 1-3/8 4 2-1/4 0.0450 6 Uncoated 9
    $191.60
  • A51998 ACT 0.308 0.2792 1-1/2 6 6 Uncoated 16
    $33.44
  • A50642 ACT 0.4500 0.4500 1-3/8 4 2-1/4 0.0450 6 Uncoated 15
    $191.60
  • A51999 ACT 0.3085 0.2792 1-1/2 6 6 Uncoated 12
    $33.44
  • A50643 ACT 0.4510 0.4510 1-3/8 4 2-1/4 0.0450 6 Uncoated 15
    $191.60
  • A52000 ACT 0.309 0.2792 1-1/2 6 6 Uncoated 19
    $33.44
  • A50644 ACT 0.4520 0.4520 1-3/8 4 2-1/4 0.0450 6 Uncoated 9
    $191.60
  • A52001 ACT 0.3095 0.2792 1-1/2 6 6 Uncoated 22
    $33.44
  • A50645 ACT 11.5mm 0.4528 11.500 1-3/8 4 57mm 0.0450 6 Uncoated 10
    $191.60
  • A52002 ACT 0.31 0.2792 1-1/2 6 6 Uncoated 18
    $33.44
  • A50646 ACT 0.4530 0.4530 1-3/8 4 2-1/4 0.0450 6 Uncoated 24
    $175.56
  • A52003 ACT 0.3105 0.2792 1-1/2 6 6 Uncoated 19
    $33.44
  • A50647 ACT 29/64 0.4531 0.4531 1-3/8 4 2-1/4 0.0450 6 Uncoated 16
    $153.00
  • A52004 ACT 0.311 0.2792 1-1/2 6 6 Uncoated 44
    $33.44
  • A50648 ACT 0.4540 0.4540 1-3/8 4 2-1/4 0.0450 6 Uncoated 8
    $191.60
  • A52005 ACT 0.312 0.2792 1-1/2 6 6 Uncoated 22
    $33.44
  • A50649 ACT 0.4550 0.4550 1-3/8 4 2-1/4 0.0450 6 Uncoated 9
    $191.60
  • A52006 ACT 0.313 0.2792 1-1/2 6 6 Uncoated 100
    $39.54
  • A50650 ACT 0.4560 0.4560 1-3/8 4 2-1/4 0.0450 6 Uncoated 6
    $191.60
  • A52007 ACT 0.314 0.2792 1-1/2 6 6 Uncoated 76
    $39.54
  • A50651 ACT 0.4570 0.4570 1-3/8 4 2-1/4 0.0450 6 Uncoated 21
    $191.60
  • A52008 ACT 0.3145 0.2792 1-1/2 6 6 Uncoated 49
    $39.54
  • A50652 ACT 0.4580 0.4580 1-3/8 4 2-1/4 0.0450 6 Uncoated 8
    $191.60
  • A52009 ACT 0.3155 0.2792 1-1/2 6 6 Uncoated 20
    $39.54
  • A50653 ACT 0.4590 0.4590 1-3/8 4 2-1/4 0.0450 6 Uncoated 12
    $191.60
  • A52010 ACT 0.3165 0.2792 1-1/2 6 6 Uncoated 15
    $39.54
  • A50654 ACT 0.4600 0.4600 1-3/8 4 2-1/4 0.0450 6 Uncoated 5
    $191.60
  • A52011 ACT 0.317 0.2792 1-1/2 6 6 Uncoated 24
    $39.54
  • A50655 ACT 0.4610 0.4610 1-3/8 4 2-1/4 0.0450 6 Uncoated 15
    $191.60
  • A52012 ACT 0.3175 0.2792 1-1/2 6 6 Uncoated 19
    $39.54
  • A50656 ACT 0.4620 0.4620 1-3/8 4 2-1/4 0.0450 6 Uncoated 10
    $191.60
  • A52013 ACT 0.318 0.2792 1-1/2 6 6 Uncoated 41
    $39.54
  • A50657 ACT 0.4630 0.4630 1-3/8 4 2-1/4 0.0450 6 Uncoated 7
    $191.60
  • A52014 ACT 0.3185 0.2792 1-1/2 6 6 Uncoated 24
    $39.54
  • A50658 ACT 0.4640 0.4640 1-3/8 4 2-1/4 0.0450 6 Uncoated 14
    $191.60
  • A52015 ACT 0.319 0.2792 1-1/2 6 6 Uncoated 16
    $39.54
  • A50659 ACT 0.4650 0.4650 1-3/8 4 2-1/4 0.0450 6 Uncoated 18
    $191.60
  • A52016 ACT 0.3195 0.2792 1-1/2 6 6 Uncoated 16
    $39.42
  • A50660 ACT 0.4660 0.4660 1-3/8 4 2-1/4 0.0450 6 Uncoated 5
    $191.60
  • A52017 ACT 0.32 0.2792 1-1/2 6 6 Uncoated 19
    $39.54
  • A50661 ACT 0.4670 0.4670 1-3/8 4 2-1/4 0.0450 6 Uncoated 8
    $191.60
  • A52018 ACT 0.3205 0.2792 1-1/2 6 6 Uncoated 15
    $39.42
  • A50662 ACT 0.4680 0.4680 1-3/8 4 2-1/4 0.0450 6 Uncoated 8
    $192.46
  • A52019 ACT 0.321 0.2792 1-1/2 6 6 Uncoated 15
    $39.54
  • A50663 ACT 15/32 0.4688 0.4688 1-3/8 4 2-1/4 0.0450 6 Uncoated 13
    $153.00
  • A52020 ACT 0.3215 0.2792 1-1/2 6 6 Uncoated 17
    $39.42
  • A50664 ACT 0.4690 0.4690 1-3/8 4 2-1/4 0.0450 6 Uncoated 9
    $201.91
  • A52021 ACT 0.322 0.2792 1-1/2 6 6 Uncoated 28
    $39.54
  • A50665 ACT 0.4700 0.4700 1-3/8 4 2-1/4 0.0450 6 Uncoated 13
    $201.91
  • A52022 ACT 0.3225 0.2792 1-1/2 6 6 Uncoated 17
    $39.54
  • A50666 ACT 0.4710 0.4710 1-3/8 4 2-1/4 0.0450 6 Uncoated 13
    $201.91
  • A52023 ACT 0.3235 0.2792 1-1/2 6 6 Uncoated 12
    $39.42
  • A50667 ACT 0.4720 0.4720 1-3/8 4 2-1/4 0.0450 6 Uncoated 8
    $202.81
  • A52024 ACT 0.324 0.2792 1-1/2 6 6 Uncoated 17
    $39.42
  • A50668 ACT 12.0mm 0.4724 12.000 1-3/8 4 57mm 0.0450 6 Uncoated 12
    $224.41
  • A52025 ACT 0.3245 0.2792 1-1/2 6 6 Uncoated 14
    $39.42
  • A50669 ACT 0.4730 0.4730 1-3/8 4 2-1/4 0.0450 6 Uncoated 16
    $202.81
  • A52026 ACT 0.325 0.2792 1-1/2 6 6 Uncoated 18
    $39.54
  • A50670 ACT 0.4740 0.4740 1-3/8 4 2-1/4 0.0450 6 Uncoated 8
    $201.91
  • A52027 ACT 0.3255 0.2792 1-1/2 6 6 Uncoated 18
    $39.42
  • A50671 ACT 0.4750 0.4750 1-3/8 4 2-1/4 0.0450 6 Uncoated 8
    $201.91
  • A52028 ACT 0.326 0.2792 1-1/2 6 6 Uncoated 9
    $39.54
  • A50672 ACT 0.4760 0.4760 1-1/2 4 2-1/4 0.0450 6 Uncoated 10
    $202.81
  • A52029 ACT 0.3265 0.2792 1-1/2 6 6 Uncoated 9
    $39.54
  • Total: items /

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