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
    A50523 ACT 0.3450 0.3450 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 14
    $99.28
  • A51880 ACT 0.2425 0.2329 1-1/2 6 6 Uncoated 14
    $29.47
  • A50524 ACT 0.3460 0.3460 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 15
    $99.28
  • A51881 ACT 0.243 0.2329 1-1/2 6 6 Uncoated 19
    $29.47
  • A50525 ACT 0.3470 0.3470 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 5
    $99.28
  • A51882 ACT 0.2435 0.2329 1-1/2 6 6 Uncoated 28
    $29.39
  • A50526 ACT S 0.3480 0.3480 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 21
    $99.28
  • A51883 ACT 0.244 0.2329 1-1/2 6 6 Uncoated 23
    $29.47
  • A50527 ACT 0.3490 0.3490 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $99.28
  • A51884 ACT 0.2445 0.2329 1-1/2 6 6 Uncoated 9
    $29.47
  • A50528 ACT 0.3500 0.3500 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 17
    $99.28
  • A51885 ACT 0.245 0.2329 1-1/2 6 6 Uncoated 17
    $29.47
  • A50529 ACT 0.3510 0.3510 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $108.40
  • A51886 ACT 0.2455 0.2329 1-1/2 6 6 Uncoated 6
    $29.39
  • A50530 ACT 0.3520 0.3520 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $108.40
  • A51887 ACT 0.2465 0.2405 1-1/2 6 6 Uncoated 17
    $29.47
  • A50531 ACT 0.3530 0.3530 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51888 ACT 0.247 0.2405 1-1/2 6 6 Uncoated 42
    $29.47
  • A50532 ACT 0.3540 0.3540 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51889 ACT 0.2475 0.2405 1-1/2 6 6 Uncoated 14
    $29.47
  • A50533 ACT 9.0mm 0.3543 9.000 1-1/4 3-1/2 54mm 0.0350 6 Uncoated 21
    $113.60
  • A51890 ACT 0.248 0.2405 1-1/2 6 6 Uncoated 100
    $29.47
  • A50534 ACT 0.3550 0.3550 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 20
    $108.40
  • A51891 ACT 0.2485 0.2405 1-1/2 6 6 Uncoated 27
    $29.47
  • A50535 ACT 0.3560 0.3560 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $108.40
  • A51892 ACT 0.2495 0.2405 1-1/2 6 6 Uncoated 64
    $29.47
  • A50536 ACT 0.3570 0.3570 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 19
    $108.40
  • A51893 ACT 0.2505 0.2405 1-1/2 6 6 Uncoated 100
    $37.40
  • A50537 ACT T 0.3580 0.3580 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $108.40
  • A51894 ACT 0.2515 0.2405 1-1/2 6 6 Uncoated 39
    $37.40
  • A50538 ACT 0.3590 0.3590 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 4
    $110.83
  • A51895 ACT 0.252 0.2405 1-1/2 6 6 Uncoated 100
    $37.40
  • A50539 ACT 23/64 0.3594 0.3594 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $107.49
  • A51896 ACT 0.2525 0.2405 1-1/2 6 6 Uncoated 14
    $37.40
  • A50540 ACT 0.3600 0.3600 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $108.40
  • A51897 ACT 0.253 0.2405 1-1/2 6 6 Uncoated 63
    $37.40
  • A50541 ACT 0.3610 0.3610 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 13
    $108.40
  • A51898 ACT 0.2535 0.2405 1-1/2 6 6 Uncoated 17
    $37.40
  • A50542 ACT 0.3620 0.3620 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51899 ACT 0.254 0.2405 1-1/2 6 6 Uncoated 20
    $37.40
  • A50543 ACT 0.3630 0.3630 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 16
    $108.40
  • A51900 ACT 0.2545 0.2405 1-1/2 6 6 Uncoated 19
    $37.40
  • A50544 ACT 0.3640 0.3640 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 9
    $108.40
  • A51901 ACT 0.255 0.2405 1-1/2 6 6 Uncoated 46
    $37.40
  • A50545 ACT 0.3650 0.3650 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 20
    $108.40
  • A51902 ACT 0.2555 0.2405 1-1/2 6 6 Uncoated 14
    $37.40
  • A50546 ACT 0.3660 0.3660 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 9
    $108.40
  • A51903 ACT 0.256 0.2485 1-1/2 6 6 Uncoated 30
    $37.40
  • A50547 ACT 0.3670 0.3670 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 14
    $108.40
  • A51904 ACT 0.2565 0.2485 1-1/2 6 6 Uncoated 12
    $37.40
  • A50548 ACT U 0.3680 0.3680 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 17
    $108.40
  • A51905 ACT 0.2575 0.2485 1-1/2 6 6 Uncoated 15
    $37.40
  • A50549 ACT 0.3690 0.3690 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51906 ACT 0.258 0.2485 1-1/2 6 6 Uncoated 23
    $37.40
  • A50550 ACT 0.3700 0.3700 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 8
    $108.40
  • A51907 ACT 0.2585 0.2485 1-1/2 6 6 Uncoated 16
    $37.40
  • A50551 ACT 0.3710 0.3710 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $108.40
  • A51908 ACT 0.259 0.2485 1-1/2 6 6 Uncoated 20
    $37.40
  • A50552 ACT 0.3720 0.3720 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 1
    $108.40
  • A51909 ACT 0.2595 0.2485 1-1/2 6 6 Uncoated 6
    $37.40
  • A50553 ACT 0.3730 0.3730 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 11
    $108.40
  • A51910 ACT 0.26 0.2485 1-1/2 6 6 Uncoated 18
    $37.40
  • A50554 ACT 9.5mm 0.3740 9.500 1-1/4 3-1/2 54mm 0.0350 6 Uncoated 22
    $108.40
  • A51911 ACT 0.2605 0.2485 1-1/2 6 6 Uncoated 22
    $37.40
  • A50555 ACT 0.3745 0.3745 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 20
    $131.48
  • A51912 ACT 0.2615 0.2485 1-1/2 6 6 Uncoated 15
    $37.40
  • A50556 ACT 3/8 0.3750 0.3750 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 4
    $107.49
  • A51913 ACT 0.262 0.2485 1-1/2 6 6 Uncoated 24
    $37.40
  • A50557 ACT 0.3755 0.3755 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 61
    $131.48
  • A51914 ACT 0.2625 0.2485 1-1/2 6 6 Uncoated 5
    $37.40
  • A50558 ACT 0.3760 0.3760 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 16
    $136.76
  • A51915 ACT 0.263 0.2485 1-1/2 6 6 Uncoated 20
    $37.40
  • A50559 ACT 0.3765 0.3765 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 19
    $142.82
  • A51916 ACT 0.2635 0.2485 1-1/2 6 6 Uncoated 19
    $37.40
  • A50560 ACT V 0.3770 0.3770 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 14
    $136.76
  • A51917 ACT 0.264 0.2485 1-1/2 6 6 Uncoated 22
    $37.40
  • A50561 ACT 0.3780 0.3780 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 19
    $136.76
  • A51918 ACT 0.2645 0.2485 1-1/2 6 6 Uncoated 7
    $37.40
  • A50562 ACT 0.3790 0.3790 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $136.14
  • A51919 ACT 0.265 0.2485 1-1/2 6 6 Uncoated 55
    $37.40
  • A50563 ACT 0.3800 0.3800 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 17
    $136.76
  • A51920 ACT 0.2655 0.2485 1-1/2 6 6 Uncoated 8
    $37.40
  • A50564 ACT 0.3810 0.3810 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $136.14
  • A51921 ACT 0.2665 0.2485 1-1/2 6 6 Uncoated 9
    $37.40
  • A50565 ACT 0.3820 0.3820 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 9
    $136.76
  • A51922 ACT 0.267 0.2485 1-1/2 6 6 Uncoated 20
    $37.40
  • A50566 ACT 0.3830 0.3830 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 14
    $136.14
  • A51923 ACT 0.2675 0.2485 1-1/2 6 6 Uncoated 10
    $37.40
  • A50567 ACT 0.3840 0.3840 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 19
    $136.76
  • A51924 ACT 0.268 0.2485 1-1/2 6 6 Uncoated 16
    $37.40
  • A50568 ACT 0.3850 0.3850 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 16
    $136.14
  • A51925 ACT 0.2685 0.2485 1-1/2 6 6 Uncoated 11
    $37.40
  • A50569 ACT W 0.3860 0.3860 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 20
    $136.14
  • A51926 ACT 0.269 0.2485 1-1/2 6 6 Uncoated 9
    $37.40
  • A50570 ACT 0.3870 0.3870 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $168.79
  • A51927 ACT 0.2695 0.2485 1-1/2 6 6 Uncoated 10
    $37.40
  • A50571 ACT 0.3880 0.3880 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 15
    $168.79
  • A51928 ACT 0.27 0.2485 1-1/2 6 6 Uncoated 48
    $37.40
  • A50572 ACT 0.3890 0.3890 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $168.79
  • A51929 ACT 0.2705 0.2485 1-1/2 6 6 Uncoated 15
    $37.40
  • Total: items /

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