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
    A50612 ACT 0.4240 0.4240 1-3/8 4 2-1/8 0.0450 6 Uncoated 12
    $168.79
  • A51969 ACT 0.2925 0.2792 1-1/2 6 6 Uncoated 10
    $37.40
  • A50613 ACT 0.4250 0.4250 1-3/8 4 2-1/8 0.0450 6 Uncoated 18
    $168.79
  • A51970 ACT 0.293 0.2792 1-1/2 6 6 Uncoated 16
    $37.40
  • A50614 ACT 0.4260 0.4260 1-3/8 4 2-1/8 0.0450 6 Uncoated 15
    $168.79
  • A51971 ACT 0.2935 0.2792 1-1/2 6 6 Uncoated 12
    $37.40
  • A50615 ACT 0.4270 0.4270 1-3/8 4 2-1/8 0.0450 6 Uncoated 12
    $168.79
  • A51972 ACT 0.294 0.2792 1-1/2 6 6 Uncoated 7
    $37.40
  • A50616 ACT 0.4280 0.4280 1-3/8 4 2-1/8 0.0450 6 Uncoated 6
    $168.79
  • A51973 ACT 0.2945 0.2792 1-1/2 6 6 Uncoated 9
    $37.40
  • A50617 ACT 0.4290 0.4290 1-3/8 4 2-1/8 0.0450 6 Uncoated 9
    $168.79
  • A51974 ACT 0.2955 0.2792 1-1/2 6 6 Uncoated 10
    $37.40
  • A50618 ACT 0.4300 0.4300 1-3/8 4 2-1/8 0.0450 6 Uncoated 24
    $168.79
  • A51975 ACT 0.296 0.2792 1-1/2 6 6 Uncoated 15
    $37.40
  • A50619 ACT 0.4310 0.4310 1-3/8 4 2-1/8 0.0450 6 Uncoated 21
    $168.79
  • A51976 ACT 0.2965 0.2792 1-1/2 6 6 Uncoated 53
    $37.40
  • A50620 ACT 0.4320 0.4320 1-3/8 4 2-1/8 0.0450 6 Uncoated 13
    $168.79
  • A51977 ACT 0.297 0.2792 1-1/2 6 6 Uncoated 15
    $33.44
  • A50621 ACT 0.4330 0.4330 1-3/8 4 2-1/8 0.0450 6 Uncoated 41
    $168.79
  • A51978 ACT 0.2975 0.2792 1-1/2 6 6 Uncoated 19
    $33.44
  • A50622 ACT 11.0mm 0.4331 11.000 1-3/8 4 57mm 0.0450 6 Uncoated 15
    $153.83
  • A51979 ACT 0.298 0.2792 1-1/2 6 6 Uncoated 15
    $33.44
  • 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
  • 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
  • A51990 ACT 0.304 0.2792 1-1/2 6 6 Uncoated 18
    $33.44
  • A51991 ACT 0.3045 0.2792 1-1/2 6 6 Uncoated 9
    $33.44
  • A51992 ACT 0.305 0.2792 1-1/2 6 6 Uncoated 10
    $33.44
  • A51993 ACT 0.3055 0.2792 1-1/2 6 6 Uncoated 16
    $33.44
  • A51994 ACT 0.306 0.2792 1-1/2 6 6 Uncoated 16
    $33.44
  • A51995 ACT 0.3065 0.2792 1-1/2 6 6 Uncoated 15
    $33.44
  • A51996 ACT 0.307 0.2792 1-1/2 6 6 Uncoated 12
    $33.44
  • A51997 ACT 0.3075 0.2792 1-1/2 6 6 Uncoated 5
    $33.44
  • A51998 ACT 0.308 0.2792 1-1/2 6 6 Uncoated 16
    $33.44
  • A51999 ACT 0.3085 0.2792 1-1/2 6 6 Uncoated 12
    $33.44
  • A52000 ACT 0.309 0.2792 1-1/2 6 6 Uncoated 19
    $33.44
  • A52001 ACT 0.3095 0.2792 1-1/2 6 6 Uncoated 22
    $33.44
  • 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
  • A52005 ACT 0.312 0.2792 1-1/2 6 6 Uncoated 22
    $33.44
  • A52006 ACT 0.313 0.2792 1-1/2 6 6 Uncoated 100
    $39.54
  • A52007 ACT 0.314 0.2792 1-1/2 6 6 Uncoated 76
    $39.54
  • A52008 ACT 0.3145 0.2792 1-1/2 6 6 Uncoated 49
    $39.54
  • A52009 ACT 0.3155 0.2792 1-1/2 6 6 Uncoated 20
    $39.54
  • A52010 ACT 0.3165 0.2792 1-1/2 6 6 Uncoated 15
    $39.54
  • A52011 ACT 0.317 0.2792 1-1/2 6 6 Uncoated 24
    $39.54
  • A52012 ACT 0.3175 0.2792 1-1/2 6 6 Uncoated 19
    $39.54
  • A52013 ACT 0.318 0.2792 1-1/2 6 6 Uncoated 41
    $39.54
  • A52014 ACT 0.3185 0.2792 1-1/2 6 6 Uncoated 24
    $39.54
  • A52015 ACT 0.319 0.2792 1-1/2 6 6 Uncoated 16
    $39.54
  • A52016 ACT 0.3195 0.2792 1-1/2 6 6 Uncoated 16
    $39.42
  • A52017 ACT 0.32 0.2792 1-1/2 6 6 Uncoated 19
    $39.54
  • A52018 ACT 0.3205 0.2792 1-1/2 6 6 Uncoated 15
    $39.42
  • 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
  • A52021 ACT 0.322 0.2792 1-1/2 6 6 Uncoated 28
    $39.54
  • A52022 ACT 0.3225 0.2792 1-1/2 6 6 Uncoated 17
    $39.54
  • A52023 ACT 0.3235 0.2792 1-1/2 6 6 Uncoated 12
    $39.42
  • A52024 ACT 0.324 0.2792 1-1/2 6 6 Uncoated 17
    $39.42
  • A52025 ACT 0.3245 0.2792 1-1/2 6 6 Uncoated 14
    $39.42
  • A52026 ACT 0.325 0.2792 1-1/2 6 6 Uncoated 18
    $39.54
  • A52027 ACT 0.3255 0.2792 1-1/2 6 6 Uncoated 18
    $39.42
  • A52028 ACT 0.326 0.2792 1-1/2 6 6 Uncoated 9
    $39.54
  • A52029 ACT 0.3265 0.2792 1-1/2 6 6 Uncoated 9
    $39.54
  • A52030 ACT 0.327 0.2792 1-1/2 6 6 Uncoated 20
    $39.42
  • A52031 ACT 0.3275 0.2792 1-1/2 6 6 Uncoated 13
    $39.42
  • A52032 ACT 0.328 0.2792 1-1/2 6 6 Uncoated 17
    $39.54
  • A52033 ACT 0.3285 0.2792 1-1/2 6 6 Uncoated 23
    $39.42
  • A52034 ACT 0.329 0.2792 1-1/2 6 6 Uncoated 39
    $39.54
  • A52035 ACT 0.3295 0.2792 1-1/2 6 6 Uncoated 13
    $39.42
  • A52036 ACT 0.33 0.2792 1-1/2 6 6 Uncoated 23
    $39.42
  • A52037 ACT 0.3305 0.2792 1-1/2 6 6 Uncoated 12
    $39.42
  • A50681 ACT 31/64 0.4844 0.4844 1-1/2 4 2-1/2 0.0450 6 Uncoated 13
    $173.54
  • A52038 ACT 0.331 0.2792 1-1/2 6 6 Uncoated 18
    $39.42
  • A52039 ACT 0.3315 0.2792 1-1/2 6 6 Uncoated 5
    $39.54
  • A52040 ACT 0.3325 0.2792 1-1/2 6 6 Uncoated 8
    $39.42
  • A52041 ACT 0.333 0.2792 1-1/2 6 6 Uncoated 7
    $39.54
  • A52042 ACT 0.3335 0.2792 1-1/2 6 6 Uncoated 22
    $39.42
  • A52043 ACT 0.334 0.2792 1-1/2 6 6 Uncoated 22
    $39.54
  • A52044 ACT 0.3345 0.2792 1-1/2 6 6 Uncoated 11
    $39.54
  • Total: items /

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