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
    A50383 ACT 0.2230 0.2230 1 3 1-3/4 0.0250 4 Uncoated 14
    $60.00
  • A52689 ACT 0.9365 O/U 0.9365 0.749 2-5/8 10 8 Uncoated 12
    $113.06
  • A51740 ACT 0.1585 0.153 1-1/8 4-1/2 6 Uncoated 33
    $26.76
  • A50384 ACT 0.2240 0.2240 1 3 1-3/4 0.0250 4 Uncoated 19
    $60.00
  • A78742 ACT .374 O/U 0.374 0.3105 1-3/4 7 6 Uncoated 15
    $33.69
  • A52690 ACT 15/16 0.9375 0.749 2-5/8 10 8 Uncoated 17
    $104.98
  • A51741 ACT 0.1595 0.153 1-1/8 4-1/2 6 Uncoated 20
    $26.76
  • A50385 ACT 0.2250 0.2250 1 3 1-3/4 0.0250 4 Uncoated 4
    $60.00
  • A52691 ACT 0.9385 O/U 0.9385 0.749 2-5/8 10 8 Uncoated 18
    $113.06
  • A51742 ACT 0.16 0.153 1-1/8 4-1/2 6 Uncoated 34
    $26.76
  • A50386 ACT 0.2260 0.2260 1 3 1-3/4 0.0250 4 Uncoated 19
    $65.77
  • A52692 ACT 24.0mm 0.9449 0.749 2-5/8 10 8 Uncoated 22
    $113.06
  • A51743 ACT 0.1605 0.153 1-1/8 4-1/2 6 Uncoated 83
    $26.76
  • A50387 ACT 0.2270 0.2270 1 3 1-3/4 0.0250 4 Uncoated 5
    $65.77
  • A78743 ACT .376 O/U 0.376 0.3105 1-3/4 7 6 Uncoated 8
    $33.69
  • A52693 ACT 61/64 0.9531 0.749 2-5/8 10 8 Uncoated 13
    $113.06
  • A51744 ACT 0.1615 0.1595 1-1/8 4-1/2 6 Uncoated 15
    $26.76
  • A50388 ACT #1 0.2280 0.2280 1 3 1-3/4 0.0250 4 Uncoated 69
    $61.65
  • A52694 ACT 24.5mm 0.9646 0.749 2-5/8 10 8 Uncoated 9
    $112.89
  • A51745 ACT 0.162 0.1595 1-1/8 4-1/2 6 Uncoated 31
    $26.76
  • A50389 ACT 0.2290 0.2290 1 3 1-3/4 0.0250 4 Uncoated 9
    $61.43
  • A78744 ACT V 0.377 0.3105 1-3/4 7 6 Uncoated 21
    $38.50
  • A52695 ACT 31/32 0.9688 0.749 2-5/8 10 8 Uncoated 17
    $123.04
  • A51746 ACT 0.1625 0.1595 1-1/8 4-1/2 6 Uncoated 15
    $26.76
  • A50390 ACT 0.2300 0.2300 1 3 1-3/4 0.0250 4 Uncoated 19
    $65.77
  • A52696 ACT 25.0mm 0.9843 0.874 2-3/4 10-1/2 8 Uncoated 14
    $119.70
  • A51747 ACT 0.163 0.1595 1-1/8 4-1/2 6 Uncoated 29
    $26.76
  • A50391 ACT 0.2310 0.2310 1 3 1-3/4 0.0250 4 Uncoated 18
    $65.77
  • A78745 ACT W 0.386 0.3105 1-3/4 7 6 Uncoated 11
    $38.50
  • A52697 ACT 63/64 0.9844 0.874 2-3/4 10-1/2 8 Uncoated 8
    $119.70
  • A51748 ACT 0.1635 0.1595 1-1/8 4-1/2 6 Uncoated 33
    $26.76
  • A50392 ACT 0.2320 0.2320 1 3 1-3/4 0.0250 4 Uncoated 12
    $65.77
  • A52698 ACT 0.999 O/U 0.9990 0.874 2-3/4 10-1/2 8 Uncoated 13
    $119.70
  • A51749 ACT 0.164 0.1595 1-1/8 4-1/2 6 Uncoated 51
    $26.76
  • A50393 ACT 0.2330 0.2330 1 3 1-3/4 0.0250 4 Uncoated 6
    $65.77
  • A78746 ACT 25/64 0.3906 0.3105 1-3/4 7 6 Uncoated 13
    $38.50
  • A52699 ACT 1 1.0000 0.874 2-3/4 10-1/2 8 Uncoated 22
    $118.70
  • A51750 ACT 0.1645 0.1595 1-1/8 4-1/2 6 Uncoated 18
    $26.76
  • A50394 ACT A 0.2340 0.2340 1 3 1-3/4 0.0250 4 Uncoated 35
    $65.77
  • A52700 ACT 1.001 O/U 1.0010 0.874 2-3/4 10-1/2 8 Uncoated 20
    $127.20
  • A51751 ACT 0.165 0.1595 1-1/8 4-1/2 6 Uncoated 22
    $26.76
  • A50395 ACT 15/64 0.2344 0.2344 1 3 1-3/4 0.0250 4 Uncoated 14
    $59.13
  • A78747 ACT 10.0mm 0.3937 0.3105 1-3/4 7 6 Uncoated 3
    $38.50
  • A52701 ACT 1-1/32 1.0312 0.874 2-3/4 10-1/2 8 Uncoated 17
    $166.08
  • A51752 ACT 0.1655 0.1595 1-1/8 4-1/2 6 Uncoated 17
    $26.76
  • A50396 ACT 0.2350 0.2350 1 3 1-3/4 0.0250 4 Uncoated 15
    $65.77
  • A52702 ACT 1-1/16 1.0625 0.874 2-3/4 10-1/2 8 Uncoated 13
    $130.87
  • A51753 ACT 0.1665 0.1595 1-1/8 4-1/2 6 Uncoated 20
    $26.76
  • A50397 ACT 0.2360 0.2360 1 3 1-3/4 0.0250 4 Uncoated 17
    $65.77
  • A78748 ACT X 0.397 0.3105 1-3/4 7 6 Uncoated 14
    $38.50
  • A52703 ACT 1-3/32 1.0938 0.874 2-7/8 11 8 Uncoated 11
    $173.09
  • A51754 ACT 0.167 0.1595 1-1/8 4-1/2 6 Uncoated 22
    $26.76
  • A50398 ACT 6.0mm 0.2362 6.000 1 3 44mm 0.0250 4 Uncoated 16
    $62.92
  • A52704 ACT 1-1/8 1.1250 0.874 2-7/8 11 8 Uncoated 17
    $138.71
  • A51755 ACT 0.1675 0.1595 1-1/8 4-1/2 6 Uncoated 8
    $26.76
  • A50399 ACT 0.2370 0.2370 1 3 1-3/4 0.0250 4 Uncoated 12
    $65.77
  • A78749 ACT Y 0.404 0.3105 1-3/4 7 6 Uncoated 3
    $39.95
  • A51756 ACT 0.168 0.1595 1-1/8 4-1/2 6 Uncoated 11
    $26.76
  • A50400 ACT B 0.2380 0.2380 1 3 1-3/4 0.0250 4 Uncoated 17
    $65.77
  • A52706 ACT 1-3/16 1.1875 0.999 2-7/8 11 10 Uncoated 15
    $163.32
  • A51757 ACT 0.1685 0.1595 1-1/8 4-1/2 6 Uncoated 19
    $26.76
  • A50401 ACT 0.2390 0.2390 1 3 1-3/4 0.0250 4 Uncoated 19
    $65.77
  • A78750 ACT 13/32 0.4063 0.3105 1-3/4 7 6 Uncoated 12
    $39.95
  • A51758 ACT 0.169 0.1595 1-1/8 4-1/2 6 Uncoated 18
    $26.76
  • A50402 ACT 0.2400 0.2400 1 3 1-3/4 0.0250 4 Uncoated 11
    $65.77
  • A52708 ACT 1-1/4 1.2500 0.999 3 11-1/2 10 Uncoated 19
    $172.81
  • A51759 ACT 0.17 0.1645 1-1/8 4-1/2 6 Uncoated 26
    $26.76
  • A50403 ACT 0.2410 0.2410 1 3 1-3/4 0.0250 4 Uncoated 11
    $65.77
  • A78751 ACT Z 0.413 0.373 1-3/4 7 6 Uncoated 10
    $39.95
  • A51760 ACT 0.1705 0.1645 1-1/8 4-1/2 6 Uncoated 12
    $26.76
  • A50404 ACT C 0.2420 0.2420 1 3 1-3/4 0.0250 4 Uncoated 12
    $65.77
  • A51761 ACT 0.171 0.1645 1-1/8 4-1/2 6 Uncoated 17
    $26.76
  • A50405 ACT 0.2430 0.2430 1 3 1-3/4 0.0250 4 Uncoated 16
    $65.77
  • A78690 ACT 10.5mm 0.4134 0.373 1-3/4 7 6 Uncoated 3
    $39.95
  • A51762 ACT 0.1715 0.1645 1-1/8 4-1/2 6 Uncoated 16
    $26.76
  • A50406 ACT 0.2440 0.2440 1 3 1-3/4 0.0250 4 Uncoated 12
    $65.77
  • A51763 ACT 0.172 0.1645 1-1/8 4-1/2 6 Uncoated 16
    $25.20
  • A50407 ACT 0.2450 0.2450 1 3 1-3/4 0.0250 4 Uncoated 17
    $65.77
  • A78691 ACT 27/64 0.4219 0.373 1-3/4 7 6 Uncoated 12
    $40.11
  • A51764 ACT 0.1725 0.1645 1-1/8 4-1/2 6 Uncoated 20
    $25.20
  • A50408 ACT D 0.2460 0.2460 1 3 1-3/4 0.0250 4 Uncoated 15
    $65.77
  • A51765 ACT 0.1735 0.1704 1-1/8 4-1/2 6 Uncoated 14
    $25.20
  • A50409 ACT 0.2470 0.2470 1 3 1-3/4 0.0250 4 Uncoated 10
    $65.77
  • A78692 ACT 11.0mm 0.4331 0.373 1-3/4 7 6 Uncoated 13
    $39.95
  • A51766 ACT 0.174 0.1704 1-1/8 4-1/2 6 Uncoated 19
    $25.20
  • A50410 ACT 0.2480 0.2480 1 3 1-3/4 0.0250 4 Uncoated 20
    $65.77
  • A51767 ACT 0.1745 0.1704 1-1/8 4-1/2 6 Uncoated 8
    $25.20
  • A50411 ACT 0.2485 0.2485 1 3 1-3/4 0.0250 4 Uncoated 8
    $73.93
  • A78693 ACT .4365 O/U 0.4365 0.373 1-3/4 7 6 Uncoated 12
    $40.11
  • A51768 ACT 0.175 0.1704 1-1/8 4-1/2 6 Uncoated 16
    $25.20
  • A50412 ACT 0.2490 0.2490 1 3 1-3/4 0.0250 4 Uncoated 20
    $65.77
  • A51769 ACT 0.1755 0.1704 1-1/8 4-1/2 6 Uncoated 22
    $25.20
  • A50413 ACT 0.2495 0.2495 1 3 1-3/4 0.0250 4 Uncoated 100
    $69.89
  • A51770 ACT 0.176 0.1704 1-1/8 4-1/2 6 Uncoated 22
    $25.20
  • A50414 ACT 1/4 0.2500 0.2500 1 3 1-3/4 0.0250 4 Uncoated 100
    $59.13
  • A78694 ACT .4385 O/U 0.4385 0.373 1-3/4 7 6 Uncoated 6
    $39.95
  • A51771 ACT 0.1765 0.1704 1-1/8 4-1/2 6 Uncoated 10
    $25.11
  • A50415 ACT 0.2505 0.2505 1 3 1-3/4 0.0250 4 Uncoated 100
    $69.89
  • A51772 ACT 0.1775 0.1755 1-1/8 4-1/2 6 Uncoated 12
    $25.20
  • A50416 ACT 0.2510 0.2510 1 3 1-3/4 0.0250 4 Uncoated 66
    $65.77
  • Total: items /

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