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
    A51534 ACT 0.03 0.031 1/2 1-3/8 3 Uncoated 27
    $27.70
  • A50178 ACT 1/16 0.0625 0.0625 3/8 1-1/2 3/4 0.0100 4 Uncoated 89
    $35.01
  • A78807 ACT #49 0.073 0.066 3/4 3 4 Uncoated 18
    $20.87
  • A53164 ACT #38 0.0950 0.095 7/8 3-1/2 4 Uncoated 23
    $23.17
  • A52988 ACT #38 0.1015 0.095 7/8 3-1/2 4 Uncoated 16
    $20.91
  • A52776 ACT #54 0.0550 0.051 1/2 2-1/2 4 Uncoated 13
    $24.45
  • A52484 ACT #54 0.0550 0.051 1/2 2-1/2 4 Uncoated 34
    $22.60
  • A51535 ACT 0.0305 0.031 1/2 1-3/8 3 Uncoated 6
    $27.70
  • A50179 ACT 0.0630 0.0630 3/8 1-1/2 3/4 0.0100 4 Uncoated 88
    $38.72
  • A53165 ACT #37 0.0950 0.095 7/8 3-1/2 4 Uncoated 7
    $23.17
  • A52989 ACT #37 0.1040 0.095 7/8 3-1/2 4 Uncoated 8
    $20.91
  • A52777 ACT 1.5mm 0.0591 0.051 1/2 2-1/2 4 Uncoated 13
    $24.45
  • A52485 ACT 1.5mm 0.0591 0.051 1/2 2-1/2 4 Uncoated 10
    $22.60
  • A51536 ACT 0.0315 0.032 1/2 1-3/8 3 Uncoated 65
    $27.70
  • A50180 ACT #52 0.0635 0.0635 3/8 1-1/2 3/4 0.0100 4 Uncoated 23
    $36.69
  • A78808 ACT #48 0.076 0.072 3/4 3 4 Uncoated 2
    $20.77
  • A53166 ACT #36 0.1030 0.103 7/8 3-1/2 4 Uncoated 6
    $23.17
  • A52990 ACT #36 0.1065 0.103 7/8 3-1/2 4 Uncoated 15
    $20.91
  • A52778 ACT #53 0.0595 0.0585 1/2 2-1/2 4 Uncoated 15
    $24.45
  • A52486 ACT #53 0.0595 0.0585 1/2 2-1/2 4 Uncoated 27
    $22.60
  • A51537 ACT 0.0325 0.033 1/2 1-3/8 3 Uncoated 43
    $27.70
  • A50181 ACT 0.0640 0.0640 3/8 1-1/2 3/4 0.0100 4 Uncoated Available to Order*
    $38.72
  • A53167 ACT 7/64 0.1030 0.103 7/8 3-1/2 4 Uncoated 18
    $23.99
  • A52991 ACT 7/64 0.1094 0.103 7/8 3-1/2 4 Uncoated 16
    $21.73
  • A52779 ACT 1/16 0.0625 0.0585 1/2 2-1/2 4 Uncoated 45
    $24.45
  • A52487 ACT 1/16 0.0625 0.0585 1/2 2-1/2 4 Uncoated 70
    $20.24
  • A51538 ACT 0.0335 0.035 1/2 1-1/2 3 Uncoated 15
    $27.70
  • A50182 ACT 0.0645 0.0645 3/8 1-1/2 3/4 0.0100 4 Uncoated 5
    $51.32
  • A53168 ACT #35 0.1030 0.103 7/8 3-1/2 4 Uncoated 9
    $24.07
  • A52992 ACT #35 0.1100 0.103 7/8 3-1/2 4 Uncoated 11
    $21.64
  • A52780 ACT #52 0.0635 0.0585 1/2 2-1/2 4 Uncoated 24
    $24.45
  • A52488 ACT #52 0.0635 0.0585 1/2 2-1/2 4 Uncoated 37
    $20.24
  • A51539 ACT 0.034 0.035 1/2 1-1/2 3 Uncoated 15
    $27.70
  • A50183 ACT 0.0650 0.0650 3/8 1-1/2 3/4 0.0100 4 Uncoated 100
    $38.72
  • A78809 ACT #47 0.0785 0.072 3/4 3 4 Uncoated 13
    $20.77
  • A53169 ACT #34 0.1055 0.1055 7/8 3-1/2 4 Uncoated 23
    $24.07
  • A52993 ACT #34 0.1110 0.1055 7/8 3-1/2 4 Uncoated 17
    $21.64
  • A52781 ACT #51 0.0670 0.066 3/4 3 4 Uncoated 18
    $19.50
  • A52489 ACT #51 0.0670 0.066 3/4 3 4 Uncoated 36
    $18.18
  • A51540 ACT 0.0345 0.035 1/2 1-1/2 3 Uncoated 18
    $27.70
  • A50184 ACT 0.0660 0.0660 1/2 1-3/4 7/8 0.0120 4 Uncoated 26
    $38.72
  • A53170 ACT #33 0.1055 0.1055 7/8 3-1/2 4 Uncoated 17
    $24.07
  • A52994 ACT #33 0.1130 0.1055 7/8 3-1/2 4 Uncoated 10
    $21.64
  • A52782 ACT #50 0.0700 0.066 3/4 3 4 Uncoated 18
    $19.50
  • A52490 ACT #50 0.0700 0.066 3/4 3 4 Uncoated 66
    $18.18
  • A51541 ACT 0.0355 0.036 1/2 1-1/2 3 Uncoated 7
    $27.70
  • A50185 ACT #51 0.0670 0.0670 1/2 1-3/4 7/8 0.0120 4 Uncoated 9
    $36.69
  • A78810 ACT 2.0mm 0.0787 0.072 3/4 3 4 Uncoated 14
    $20.87
  • A53171 ACT #32 0.1120 0.112 7/8 3-1/2 4 Uncoated 13
    $23.99
  • A52995 ACT #32 0.1160 0.112 7/8 3-1/2 4 Uncoated 10
    $21.73
  • A52783 ACT #49 0.0730 0.066 3/4 3 4 Uncoated 31
    $19.50
  • A52491 ACT #49 0.0730 0.066 3/4 3 4 Uncoated 39
    $18.18
  • A51542 ACT 0.0365 0.037 1/2 1-1/2 3 Uncoated 15
    $27.70
  • A50186 ACT 0.0680 0.0680 1/2 1-3/4 7/8 0.0120 4 Uncoated 46
    $38.72
  • A53172 ACT 3.0mm 0.1120 0.112 7/8 3-1/2 4 Uncoated 19
    $23.99
  • A52996 ACT 3.0mm 0.1181 0.112 7/8 3-1/2 4 Uncoated 22
    $21.73
  • A52784 ACT #48 0.0760 0.072 3/4 3 4 Uncoated 15
    $19.50
  • A52492 ACT #48 0.0760 0.072 3/4 3 4 Uncoated 12
    $18.18
  • A51543 ACT 0.0375 0.038 1/2 1-1/2 3 Uncoated 10
    $27.70
  • A50187 ACT 0.0690 0.0690 1/2 1-3/4 7/8 0.0120 4 Uncoated 22
    $38.72
  • A78811 ACT #46 0.081 0.0771 3/4 3 4 Uncoated 22
    $20.77
  • A53173 ACT #31 0.1120 0.112 7/8 3-1/2 4 Uncoated 9
    $24.07
  • A52997 ACT #31 0.1200 0.112 7/8 3-1/2 4 Uncoated 12
    $21.73
  • A52785 ACT 5/64 0.0781 0.072 3/4 3 4 Uncoated 36
    $19.50
  • A52493 ACT 5/64 0.0781 0.072 3/4 3 4 Uncoated 35
    $18.18
  • A51544 ACT 0.0385 0.039 1/2 1-1/2 3 Uncoated 14
    $27.70
  • A50188 ACT #50 0.0700 0.0700 1/2 1-3/4 7/8 0.0120 4 Uncoated 16
    $36.69
  • A53174 ACT 0.124 O/U 0.1190 0.119 7/8 3-1/2 4 Uncoated 15
    $24.07
  • A52998 ACT 0.124 O/U 0.1240 0.119 7/8 3-1/2 4 Uncoated 20
    $21.73
  • A52786 ACT #47 0.0785 0.072 3/4 3 4 Uncoated 41
    $19.50
  • A52494 ACT #47 0.0785 0.072 3/4 3 4 Uncoated 25
    $18.18
  • A51545 ACT 0.0395 0.039 1/2 2-1/2 4 Uncoated 16
    $26.39
  • A50189 ACT 0.0710 0.0710 1/2 1-3/4 7/8 0.0120 4 Uncoated 100
    $38.72
  • A78812 ACT #45 0.082 0.0771 3/4 3 4 Uncoated 18
    $20.77
  • A53175 ACT 1/8 0.1190 0.119 7/8 3-1/2 4 Uncoated 17
    $21.52
  • A52999 ACT 1/8 0.1250 0.119 7/8 3-1/2 4 Uncoated 17
    $19.46
  • A52787 ACT 2.0mm 0.0787 0.072 3/4 3 4 Uncoated 23
    $19.50
  • A52495 ACT 2.0mm 0.0787 0.072 3/4 3 4 Uncoated 39
    $18.18
  • A51546 ACT 0.0405 0.039 1/2 2-1/2 4 Uncoated 21
    $26.55
  • A50190 ACT 0.0720 0.0720 1/2 1-3/4 7/8 0.0120 4 Uncoated 24
    $38.72
  • A53176 ACT 0.126 O/U 0.1190 0.119 7/8 3-1/2 4 Uncoated 17
    $24.07
  • A53000 ACT 0.126 O/U 0.1260 0.119 7/8 3-1/2 4 Uncoated 20
    $21.73
  • A52788 ACT #46 0.0810 0.0771 3/4 3 4 Uncoated 12
    $19.50
  • A52496 ACT #46 0.0810 0.0771 3/4 3 4 Uncoated 21
    $18.18
  • A51547 ACT 0.0415 0.039 1/2 2-1/2 4 Uncoated 28
    $26.39
  • A50191 ACT #49 0.0730 0.0730 1/2 1-3/4 7/8 0.0120 4 Uncoated 34
    $36.69
  • A78813 ACT #44 0.086 0.081 3/4 3 4 Uncoated 12
    $20.77
  • A53177 ACT #30 0.1190 0.119 7/8 3-1/2 4 Uncoated 10
    $24.07
  • A53001 ACT #30 0.1285 0.119 7/8 3-1/2 4 Uncoated 9
    $21.73
  • A52789 ACT #45 0.0820 0.0771 3/4 3 4 Uncoated 23
    $19.50
  • A52497 ACT #45 0.0820 0.0771 3/4 3 4 Uncoated 15
    $18.18
  • A51548 ACT 0.0425 0.039 1/2 2-1/2 4 Uncoated 10
    $26.55
  • A50192 ACT 0.0740 0.0740 1/2 1-3/4 7/8 0.0120 4 Uncoated 6
    $38.72
  • A53178 ACT #29 0.1275 0.1275 1 4 4 Uncoated 10
    $28.49
  • A53002 ACT #29 0.1360 0.1275 1 4 4 Uncoated 12
    $25.90
  • A52790 ACT #44 0.0860 0.081 3/4 3 4 Uncoated 19
    $19.50
  • A52498 ACT #44 0.0860 0.081 3/4 3 4 Uncoated 11
    $18.18
  • A51549 ACT 0.0435 0.0455 1/2 2-1/2 4 Uncoated 15
    $26.39
  • A50193 ACT 0.0750 0.0750 1/2 1-3/4 7/8 0.0120 4 Uncoated 17
    $38.72
  • A78814 ACT #43 0.089 0.081 3/4 3 4 Uncoated 14
    $20.87

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

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