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
    A50680 ACT 0.4840 0.4840 1-1/2 4 2-1/2 0.0450 6 Uncoated 15
    $201.91
  • A50682 ACT 0.4850 0.4850 1-1/2 4 2-1/2 0.0450 6 Uncoated 8
    $201.91
  • A50683 ACT 0.4860 0.4860 1-1/2 4 2-1/2 0.0450 6 Uncoated 12
    $201.91
  • A50684 ACT 0.4870 0.4870 1-1/2 4 2-1/2 0.0450 6 Uncoated 6
    $243.34
  • A50685 ACT 0.4880 0.4880 1-1/2 4 2-1/2 0.0450 6 Uncoated 12
    $243.34
  • A50686 ACT 0.4890 0.4890 1-1/2 4 2-1/2 0.0450 6 Uncoated 12
    $243.34
  • A50687 ACT 0.4900 0.4900 1-1/2 4 2-1/2 0.0450 6 Uncoated 9
    $243.34
  • A50688 ACT 0.4910 0.4910 1-1/2 4 2-1/2 0.0450 6 Uncoated 5
    $243.34
  • A50689 ACT 0.4920 0.4920 1-1/2 4 2-1/2 0.0450 6 Uncoated 3
    $243.34
  • A50690 ACT 12.5mm 0.4921 12.500 1-1/2 4 63mm 0.0450 6 Uncoated 6
    $280.86
  • A50691 ACT 0.4930 0.4930 1-1/2 4 2-1/2 0.0450 6 Uncoated 10
    $243.34
  • A50692 ACT 0.4940 0.4940 1-1/2 4 2-1/2 0.0450 6 Uncoated 2
    $243.34
  • A50693 ACT 0.4950 0.4950 1-1/2 4 2-1/2 0.0450 6 Uncoated 6
    $243.34
  • A50694 ACT 0.4960 0.4960 1-1/2 4 2-1/2 0.0450 6 Uncoated 12
    $243.34
  • A50695 ACT 0.4970 0.4970 1-1/2 4 2-1/2 0.0450 6 Uncoated 13
    $243.34
  • A50696 ACT 0.4980 0.4980 1-1/2 4 2-1/2 0.0450 6 Uncoated 38
    $243.34
  • A50697 ACT 0.4990 0.4990 1-1/2 4 2-1/2 0.0450 6 Uncoated 19
    $243.34
  • A50698 ACT 0.4995 0.4995 1-1/2 4 2-1/2 0.0450 6 Uncoated 10
    $243.34
  • A50699 ACT 1/2 0.5000 0.5000 1-1/2 4 2-1/2 0.0450 6 Uncoated 17
    $201.12
  • A50700 ACT 0.5005 0.5005 1-1/2 4 2-1/2 0.0450 6 Uncoated 27
    $280.86
  • A50701 ACT 0.5010 0.5010 1-1/2 4 2-1/2 0.0450 6 Uncoated 23
    $280.86
  • A50702 ACT 0.5020 0.5020 1-1/2 4 2-1/2 0.0450 6 Uncoated 17
    $280.86
  • A52448 ACT 1.0005 0.874 2-3/4 10-1/2 8 Uncoated 14
    $182.65
  • A52449 ACT 1.0015 0.874 2-3/4 10-1/2 8 Uncoated 12
    $182.65
  • A52450 ACT 1.002 0.874 2-3/4 10-1/2 8 Uncoated 13
    $182.65
  • A52451 ACT 1.0025 0.874 2-3/4 10-1/2 8 Uncoated 16
    $182.65
  • A52452 ACT 1.003 0.874 2-3/4 10-1/2 8 Uncoated 16
    $182.65
  • Total: items /

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