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
    A51677 ACT 0.121 0.119 7/8 3-1/2 4 Uncoated 11
    $20.54
  • A50321 ACT 0.1720 0.1720 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 9
    $55.29
  • A78713 ACT .249 O/U 0.249 0.2405 1-1/2 6 6 Uncoated 7
    $34.26
  • A53131 ACT 1-3/8 1.3750 0.999 3-1/4 12 10 Uncoated 13
    $240.49
  • A52919 ACT 0.501 O/U 0.5010 0.4355 2 8 6 Uncoated 21
    $67.46
  • A52627 ACT 0.501 O/U 0.5010 0.4355 2 8 6 Uncoated 100
    $40.90
  • A51678 ACT 0.1215 0.119 7/8 3-1/2 4 Uncoated 25
    $20.54
  • A50322 ACT #17 0.1730 0.1730 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 20
    $51.32
  • A52920 ACT 17/32 0.5313 0.4355 2 8 6 Uncoated 32
    $75.82
  • A52628 ACT 13.0mm 0.5118 0.4355 2 8 6 Uncoated 28
    $53.48
  • A51679 ACT 0.122 0.119 7/8 3-1/2 4 Uncoated 43
    $20.54
  • A50323 ACT 0.1740 0.1740 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $55.29
  • A53133 ACT 1-1/2 1.5000 1.249 3-1/2 12-1/2 10 Uncoated Available to Order*
    $276.49
  • A52921 ACT 9/16 0.5625 0.4355 2 8 8 Uncoated 15
    $75.82
  • A52629 ACT 33/64 0.5156 0.4355 2 8 6 Uncoated 21
    $53.48
  • A51680 ACT 0.1225 0.119 7/8 3-1/2 4 Uncoated 20
    $20.54
  • A50324 ACT 0.1750 0.1750 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $55.29
  • A78714 ACT .251 O/U 0.251 0.2405 1-1/2 6 6 Uncoated 7
    $34.26
  • A53302 ACT 1-9/16 1.5625 1.249 3-1/2 13 12 Uncoated 13
    $394.32
  • A52922 ACT 19/32 0.5938 0.4355 2 8 8 Uncoated 8
    $75.82
  • A52630 ACT 17/32 0.5312 0.4355 2 8 6 Uncoated 23
    $50.79
  • A51681 ACT 0.123 0.119 7/8 3-1/2 4 Uncoated 19
    $20.54
  • A50325 ACT 0.1760 0.1760 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $55.29
  • A53303 ACT 1-5/8 1.6250 1.249 3-1/2 13 12 Uncoated 12
    $396.38
  • A52923 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 15
    $88.45
  • A52631 ACT 13.5mm 0.5315 0.4355 2 8 6 Uncoated 19
    $53.48
  • A51682 ACT 0.1235 0.119 7/8 3-1/2 4 Uncoated 22
    $20.54
  • A50326 ACT #16 0.1770 0.1770 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 38
    $51.32
  • A78715 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 23
    $32.04
  • A52924 ACT 21/32 0.6563 0.5615 2-1/4 9 8 Uncoated 18
    $101.96
  • A52632 ACT 35/64 0.5469 0.4355 2 8 8 Uncoated 14
    $53.48
  • A51683 ACT 0.1245 0.119 7/8 3-1/2 4 Uncoated 100
    $20.54
  • A50327 ACT 4.5mm 0.1772 4.500 7/8 2-3/4 38mm 0.0220 4 Uncoated 8
    $57.47
  • A53305 ACT 1-3/4 1.7500 1.249 4 13-1/2 12 Uncoated 11
    $455.06
  • A52925 ACT 11/16 0.6875 0.5615 2-1/4 9 8 Uncoated 14
    $101.64
  • A52633 ACT 14.0mm 0.5512 0.4355 2 8 8 Uncoated 24
    $53.48
  • A51684 ACT 0.1247 0.119 7/8 3-1/2 4 Uncoated 39
    $20.54
  • A50328 ACT 0.1780 0.1780 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $55.29
  • A78716 ACT F 0.257 0.2485 1-1/2 6 6 Uncoated 14
    $32.20
  • A53306 ACT 1-13/16 1.8125 1.499 4 14 12 Uncoated 10
    $524.11
  • A52926 ACT 23/32 0.7188 0.5615 2-1/4 9 8 Uncoated 13
    $113.60
  • A52634 ACT 0.5615 O/U 0.5615 0.4355 2 8 8 Uncoated 7
    $53.48
  • A51685 ACT 0.1255 0.119 7/8 3-1/2 4 Uncoated 100
    $27.70
  • A50329 ACT 0.1790 0.1790 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $55.29
  • A52927 ACT 3/4 0.7500 0.624 2-1/2 9 8 Uncoated 17
    $113.54
  • A52635 ACT 9/16 0.5625 0.4355 2 8 8 Uncoated 21
    $50.79
  • A51686 ACT 0.1265 0.119 7/8 3-1/2 4 Uncoated 27
    $27.70
  • A50330 ACT #15 0.1800 0.1800 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 23
    $51.32
  • A78717 ACT G 0.261 0.2485 1-1/2 6 6 Uncoated 16
    $32.04
  • A53308 ACT 1-15/16 1.9375 1.499 4 14 12 Uncoated 11
    $613.62
  • A52928 ACT 25/32 0.7813 0.624 2-1/2 9 8 Uncoated 5
    $122.79
  • A52636 ACT 0.5635 O/U 0.5635 0.4355 2 8 8 Uncoated 18
    $53.48
  • A51687 ACT 0.127 0.119 7/8 3-1/2 4 Uncoated 79
    $27.70
  • A50331 ACT 0.1810 0.1810 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 43
    $55.29
  • A53309 ACT 2 2.0000 1.499 4 14 12 Uncoated 11
    $613.62
  • A52929 ACT 13/16 0.8125 0.624 2-1/2 9 8 Uncoated 17
    $122.00
  • A52637 ACT 14.5mm 0.5709 0.4355 2 8 8 Uncoated 11
    $53.48
  • A51688 ACT 0.1275 0.119 7/8 3-1/2 4 Uncoated 22
    $27.70
  • A50332 ACT #14 0.1820 0.1820 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 45
    $51.32
  • A52930 ACT 27/32 0.8438 0.624 2-1/2 9-1/2 8 Uncoated 13
    $145.21
  • A52638 ACT 37/64 0.5781 0.4355 2 8 8 Uncoated 11
    $53.48
  • A51689 ACT 0.128 0.119 7/8 3-1/2 4 Uncoated 45
    $27.70
  • A50333 ACT 0.1830 0.1830 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $55.29
  • A78718 ACT H 0.266 0.2485 1-1/2 6 6 Uncoated 9
    $35.71
  • A52931 ACT 7/8 0.8750 0.749 2-5/8 10 8 Uncoated 5
    $148.63
  • A52639 ACT 15.0mm 0.5906 0.4355 2 8 8 Uncoated 24
    $53.48
  • A51690 ACT 0.129 0.1275 1 4 4 Uncoated 56
    $27.70
  • A50334 ACT 0.1840 0.1840 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $55.29
  • A52932 ACT 29/32 0.9063 0.749 2-5/8 10 8 Uncoated 11
    $159.89
  • A52640 ACT 19/32 0.5938 0.4355 2 8 8 Uncoated 19
    $50.79
  • A51691 ACT 0.1295 0.1275 1 4 4 Uncoated 17
    $27.70
  • A50335 ACT #13 0.1850 0.1850 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 7
    $51.32
  • A78719 ACT I 0.272 0.2485 1-1/2 6 6 Uncoated 12
    $35.71
  • A52933 ACT 15/16 0.9375 0.749 2-5/8 10 8 Uncoated 16
    $159.31
  • A52641 ACT 39/64 0.6094 0.5615 2-1/4 9 8 Uncoated 20
    $62.51
  • A51692 ACT 0.13 0.1275 1 4 4 Uncoated 40
    $27.70
  • A50336 ACT 0.1855 0.1855 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $66.13
  • A52934 ACT 31/32 0.9688 0.749 2-5/8 10 8 Uncoated 4
    $178.94
  • A52642 ACT 15.5mm 0.6102 0.5615 2-1/4 9 8 Uncoated 16
    $62.51
  • A51693 ACT 0.1305 0.1275 1 4 4 Uncoated 20
    $27.70
  • A50337 ACT 0.1860 0.1860 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 15
    $55.29
  • A78720 ACT 7.0mm 0.2756 0.2485 1-1/2 6 6 Uncoated 9
    $35.71
  • A52935 ACT 1 1.0000 0.874 2-3/4 10-1/2 8 Uncoated 16
    $180.92
  • A52643 ACT 0.624 O/U 0.6240 0.5615 2-1/4 9 8 Uncoated 24
    $62.51
  • A51694 ACT 0.131 0.1275 1 4 4 Uncoated 17
    $27.70
  • A50338 ACT 0.1865 0.1865 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 60
    $59.45
  • A52644 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 73
    $59.49
  • A51695 ACT 0.1315 0.1275 1 4 4 Uncoated 18
    $27.70
  • A50339 ACT 0.1870 0.1870 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 31
    $55.29
  • A78721 ACT J 0.277 0.2485 1-1/2 6 6 Uncoated 10
    $35.71
  • A52645 ACT 0.626 O/U 0.6260 0.5615 2-1/4 9 8 Uncoated 71
    $64.36
  • A51696 ACT 0.132 0.1275 1 4 4 Uncoated 23
    $27.70
  • A50340 ACT 3/16 0.1875 0.1875 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 75
    $49.73
  • A52646 ACT 16.0mm 0.6299 0.5615 2-1/4 9 8 Uncoated 73
    $64.36
  • A51697 ACT 0.1325 0.1275 1 4 4 Uncoated 13
    $27.70
  • A50341 ACT 0.1880 0.1880 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 84
    $55.29
  • A78722 ACT K 0.281 0.2485 1-1/2 6 6 Uncoated 9
    $35.71
  • A52647 ACT 41/64 0.6406 0.5615 2-1/4 9 8 Uncoated 10
    $64.32
  • A51698 ACT 0.133 0.1275 1 4 4 Uncoated 18
    $27.70
  • A50342 ACT 0.1885 0.1885 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 100
    $59.45

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

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