Chucking Reamers

Chucking Reamers

Carbide - Right Hand Spiral
Carbide - Right Hand Spiral
Carbide - Straight Flute
Carbide - Straight Flute
Cobalt - Right Hand Spiral
Cobalt - Right Hand Spiral
Cobalt - Straight Flute
Cobalt - Straight Flute
HSS - Intermediate Sizes
HSS - Intermediate Sizes
HSS - Left Hand Spiral
HSS - Left Hand Spiral
HSS - Right Hand Spiral
HSS - Right Hand Spiral
HSS - Straight Flute
HSS - Straight Flute

Our Chucking Reamer selection is one of the deepest in the industry, with straight flute and spiral flute options available in HSS, Cobalt, and Carbide, and in right-hand or left-hand spiral configurations. HSS Intermediate Sizes fill in the gaps between standard fractional sizes for closer tolerance matching.

Spiral flute chucking reamers help clear chips more efficiently in blind holes and through-holes alike, while straight flute versions are often preferred for interrupted cuts like keyways. Cobalt chucking reamers offer better heat resistance for stainless and tool steel work compared to standard HSS. With over 5,000 chucking reamers in stock, USA manufactured and ready to ship same day, we're built to match your exact tolerance and material needs.

  • 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
    A50324 ACT 0.1750 0.1750 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $49.57
  • A78714 ACT .251 O/U 0.251 0.2405 1-1/2 6 6 Uncoated Available to Order*
    $31.53
  • A52922 ACT 19/32 0.5938 0.4355 2 8 8 Uncoated 8
    $73.27
  • A52630 ACT 17/32 0.5312 0.4355 2 8 6 Uncoated 23
    $49.06
  • A51681 ACT 0.123 0.119 7/8 3-1/2 4 Uncoated 24
    $19.84
  • A50325 ACT 0.1760 0.1760 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 20
    $49.57
  • A52923 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 19
    $85.44
  • A52631 ACT 13.5mm 0.5315 0.4355 2 8 6 Uncoated 19
    $51.67
  • A51682 ACT 0.1235 0.119 7/8 3-1/2 4 Uncoated 15
    $19.84
  • A50326 ACT #16 0.1770 0.1770 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $46.02
  • A78715 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated Available to Order*
    $29.47
  • A52924 ACT 21/32 0.6563 0.5615 2-1/4 9 8 Uncoated 18
    $98.50
  • A52632 ACT 35/64 0.5469 0.4355 2 8 8 Uncoated 14
    $51.67
  • A51683 ACT 0.1245 0.119 7/8 3-1/2 4 Uncoated 100
    $19.84
  • A50327 ACT 4.5mm 0.1772 4.500 7/8 2-3/4 38mm 0.0220 4 Uncoated 11
    $51.54
  • A52925 ACT 11/16 0.6875 0.5615 2-1/4 9 8 Uncoated 14
    $98.22
  • A52633 ACT 14.0mm 0.5512 0.4355 2 8 8 Uncoated 18
    $51.67
  • A51684 ACT 0.1247 0.119 7/8 3-1/2 4 Uncoated 19
    $19.84
  • A50328 ACT 0.1780 0.1780 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $49.57
  • A78716 ACT F 0.257 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $29.65
  • A52634 ACT 0.5615 O/U 0.5615 0.4355 2 8 8 Uncoated 7
    $51.67
  • A51685 ACT 0.1255 0.119 7/8 3-1/2 4 Uncoated 60
    $26.76
  • A50329 ACT 0.1790 0.1790 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 9
    $49.57
  • A52635 ACT 9/16 0.5625 0.4355 2 8 8 Uncoated 28
    $49.06
  • A51686 ACT 0.1265 0.119 7/8 3-1/2 4 Uncoated 47
    $26.76
  • A50330 ACT #15 0.1800 0.1800 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 4
    $46.02
  • A78717 ACT G 0.261 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $29.47
  • A52636 ACT 0.5635 O/U 0.5635 0.4355 2 8 8 Uncoated 17
    $51.67
  • A51687 ACT 0.127 0.119 7/8 3-1/2 4 Uncoated 43
    $26.76
  • A50331 ACT 0.1810 0.1810 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $49.57
  • A52637 ACT 14.5mm 0.5709 0.4355 2 8 8 Uncoated 11
    $51.67
  • A51688 ACT 0.1275 0.119 7/8 3-1/2 4 Uncoated 22
    $26.76
  • A50332 ACT #14 0.1820 0.1820 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 15
    $46.02
  • A52638 ACT 37/64 0.5781 0.4355 2 8 8 Uncoated 13
    $51.67
  • A51689 ACT 0.128 0.119 7/8 3-1/2 4 Uncoated 34
    $26.76
  • A50333 ACT 0.1830 0.1830 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $49.57
  • A78718 ACT H 0.266 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52639 ACT 15.0mm 0.5906 0.4355 2 8 8 Uncoated 18
    $51.67
  • A51690 ACT 0.129 0.1275 1 4 4 Uncoated 61
    $26.76
  • A50334 ACT 0.1840 0.1840 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $49.57
  • A52640 ACT 19/32 0.5938 0.4355 2 8 8 Uncoated 20
    $49.06
  • A51691 ACT 0.1295 0.1275 1 4 4 Uncoated 18
    $26.76
  • A50335 ACT #13 0.1850 0.1850 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 11
    $46.02
  • A78719 ACT I 0.272 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52641 ACT 39/64 0.6094 0.5615 2-1/4 9 8 Uncoated 20
    $60.41
  • A51692 ACT 0.13 0.1275 1 4 4 Uncoated 54
    $26.76
  • A50336 ACT 0.1855 0.1855 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $59.29
  • A52642 ACT 15.5mm 0.6102 0.5615 2-1/4 9 8 Uncoated 17
    $60.41
  • A51693 ACT 0.1305 0.1275 1 4 4 Uncoated 20
    $26.76
  • A50337 ACT 0.1860 0.1860 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 23
    $49.57
  • A78720 ACT 7.0mm 0.2756 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52643 ACT 0.624 O/U 0.6240 0.5615 2-1/4 9 8 Uncoated 35
    $60.41
  • A51694 ACT 0.131 0.1275 1 4 4 Uncoated 19
    $26.76
  • A50338 ACT 0.1865 0.1865 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $53.32
  • A52644 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 32
    $57.48
  • A51695 ACT 0.1315 0.1275 1 4 4 Uncoated 9
    $26.76
  • A50339 ACT 0.1870 0.1870 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 48
    $49.57
  • A78721 ACT J 0.277 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52645 ACT 0.626 O/U 0.6260 0.5615 2-1/4 9 8 Uncoated 100
    $62.18
  • A51696 ACT 0.132 0.1275 1 4 4 Uncoated 19
    $26.76
  • A50340 ACT 3/16 0.1875 0.1875 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 100
    $44.58
  • A52646 ACT 16.0mm 0.6299 0.5615 2-1/4 9 8 Uncoated 34
    $62.18
  • A51697 ACT 0.1325 0.1275 1 4 4 Uncoated 13
    $26.76
  • A50341 ACT 0.1880 0.1880 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 100
    $49.57
  • A78722 ACT K 0.281 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52647 ACT 41/64 0.6406 0.5615 2-1/4 9 8 Uncoated 11
    $62.14
  • A51698 ACT 0.133 0.1275 1 4 4 Uncoated 22
    $26.76
  • A50342 ACT 0.1885 0.1885 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 58
    $53.32
  • A52648 ACT 16.5mm 0.6496 0.5615 2-1/4 9 8 Uncoated 17
    $64.86
  • A51699 ACT 0.1335 0.1275 1 4 4 Uncoated 9
    $26.76
  • A50343 ACT #12 0.1890 0.1890 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $46.02
  • A78723 ACT 9/32 0.2813 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $31.08
  • A52649 ACT 21/32 0.6562 0.5615 2-1/4 9 8 Uncoated 19
    $66.67
  • A51700 ACT 0.134 0.1275 1 4 4 Uncoated 71
    $26.76
  • A50344 ACT 0.1900 0.1900 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 26
    $49.57
  • A52650 ACT 17.0mm 0.6693 0.5615 2-1/4 9 8 Uncoated 3
    $69.97
  • A51701 ACT 0.1345 0.1275 1 4 4 Uncoated 9
    $26.76
  • A50345 ACT #11 0.1910 0.1910 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 17
    $56.07
  • A78724 ACT L 0.29 0.2792 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52651 ACT 43/64 0.6719 0.5615 2-1/4 9 8 Uncoated 23
    $69.97
  • A51702 ACT 0.135 0.1275 1 4 4 Uncoated 65
    $26.76
  • A50346 ACT 0.1920 0.1920 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 24
    $60.00
  • A52652 ACT 0.6865 O/U 0.6865 0.5615 2-1/4 9 8 Uncoated 9
    $69.93
  • A51703 ACT 0.1355 0.1275 1 4 4 Uncoated 10
    $26.76
  • A50347 ACT 0.1930 0.1930 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 19
    $60.00
  • A78725 ACT M 0.295 0.2792 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52653 ACT 11/16 0.6875 0.5615 2-1/4 9 8 Uncoated 19
    $66.85
  • A51704 ACT 0.1365 0.135 1 4 4 Uncoated 12
    $26.76
  • A50348 ACT #10 0.1935 0.1935 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 18
    $56.07
  • A52654 ACT 0.6885 O/U 0.6885 0.5615 2-1/4 9 8 Uncoated 14
    $75.25
  • A51705 ACT 0.137 0.135 1 4 4 Uncoated 19
    $26.76
  • A50349 ACT 0.1940 0.1940 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 18
    $60.00
  • A78726 ACT 7.5mm 0.2953 0.2792 1-1/2 6 6 Uncoated Available to Order*
    $32.86
  • A52655 ACT 17.5mm 0.6890 0.5615 2-1/4 9 8 Uncoated 7
    $75.25
  • A51706 ACT 0.1375 0.135 1 4 4 Uncoated 11
    $26.76
  • A50350 ACT 0.1950 0.1950 7/8 2-3/4 1-3/4 0.0250 4 Uncoated 21
    $60.00
  • A52656 ACT 45/64 0.7031 0.5615 2-1/4 9 8 Uncoated 20
    $75.17
  • A51707 ACT 0.138 0.135 1 4 4 Uncoated 36
    $26.76
  • A50351 ACT #9 0.1960 0.1960 1 3 1-3/4 0.0250 4 Uncoated 8
    $56.07
  • A52657 ACT 18.0mm 0.7087 0.5615 2-1/4 9 8 Uncoated 8
    $75.17

* Lead times can vary from 1–10 business days. Call (908) 98-ATLAS or email sales@atlascuttingtools.com for details.

  • Total: items /

Adding your products to cart

View Cart Continue Shopping