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
    A53179 ACT 3.5mm 0.1350 0.135 1 4 4 Uncoated 19
    $28.49
  • A53003 ACT 3.5mm 0.1378 0.135 1 4 4 Uncoated 6
    $25.90
  • A52791 ACT #43 0.0890 0.081 3/4 3 4 Uncoated 20
    $19.50
  • A52499 ACT #43 0.0890 0.081 3/4 3 4 Uncoated 23
    $18.18
  • A51550 ACT 0.044 0.0455 1/2 2-1/2 4 Uncoated 10
    $26.55
  • A50194 ACT #48 0.0760 0.0760 1/2 1-3/4 7/8 0.0120 4 Uncoated 20
    $36.69
  • A53180 ACT #28 0.1350 0.135 1 4 4 Uncoated 16
    $28.49
  • A53004 ACT #28 0.1405 0.135 1 4 4 Uncoated 6
    $25.90
  • A52792 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 51
    $19.50
  • A52500 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 26
    $18.18
  • A51551 ACT 0.0445 0.0455 1/2 2-1/2 4 Uncoated 25
    $26.39
  • A50195 ACT 0.0770 0.0770 1/2 1-3/4 7/8 0.0120 4 Uncoated 16
    $38.72
  • A78815 ACT #42 0.0935 0.088 3/4 3 4 Uncoated 17
    $20.77
  • A53181 ACT 9/64 0.1350 0.135 1 4 4 Uncoated 5
    $28.49
  • A53005 ACT 9/64 0.1406 0.135 1 4 4 Uncoated 14
    $25.90
  • A52793 ACT 3/32 0.0938 0.088 3/4 3 4 Uncoated 64
    $19.50
  • A52501 ACT 3/32 0.0938 0.088 3/4 3 4 Uncoated 52
    $16.24
  • A51552 ACT 0.045 0.0455 1/2 2-1/2 4 Uncoated 38
    $26.55
  • A50196 ACT 0.0780 0.0780 1/2 1-3/4 7/8 0.0120 4 Uncoated Available to Order*
    $38.72
  • A53182 ACT #27 0.1350 0.135 1 4 4 Uncoated 11
    $28.49
  • A52794 ACT #41 0.0960 0.0928 7/8 3-1/2 4 Uncoated 39
    $19.79
  • A52502 ACT #41 0.0960 0.0928 7/8 3-1/2 4 Uncoated 41
    $18.43
  • A51553 ACT 0.0455 0.0455 1/2 2-1/2 4 Uncoated 22
    $26.55
  • A50197 ACT 5/64 0.0781 0.0781 1/2 1-3/4 7/8 0.0120 4 Uncoated 15
    $35.01
  • A53183 ACT #26 0.1430 0.143 1 4 4 Uncoated 15
    $28.49
  • A53007 ACT #26 0.1470 0.143 1 4 4 Uncoated 12
    $25.90
  • A52795 ACT #40 0.0980 0.0928 7/8 3-1/2 4 Uncoated 70
    $19.79
  • A52503 ACT #40 0.0980 0.0928 7/8 3-1/2 4 Uncoated 16
    $18.43
  • A51554 ACT 0.046 0.0455 1/2 2-1/2 4 Uncoated 23
    $26.55
  • A50198 ACT #47 0.0785 0.0785 1/2 1-3/4 7/8 0.0120 4 Uncoated 21
    $36.69
  • A78816 ACT #41 0.096 0.0928 7/8 3-1/2 4 Uncoated 26
    $20.91
  • A53184 ACT #25 0.1430 0.143 1 4 4 Uncoated 21
    $28.49
  • A53008 ACT #25 0.1495 0.143 1 4 4 Uncoated 7
    $25.90
  • A52796 ACT 2.5mm 0.0984 0.0928 7/8 3-1/2 4 Uncoated 7
    $19.79
  • A52504 ACT 2.5mm 0.0984 0.0928 7/8 3-1/2 4 Uncoated 22
    $18.43
  • A51555 ACT 0.047 0.051 1/2 2-1/2 4 Uncoated 24
    $26.55
  • A50199 ACT 2.0mm 0.0787 2.000 1/2 1-3/4 22mm 0.0120 4 Uncoated 72
    $38.72
  • A53185 ACT #24 0.1460 0.146 1 4 4 Uncoated 24
    $28.49
  • A53009 ACT #24 0.1520 0.146 1 4 4 Uncoated 14
    $26.88
  • A52797 ACT #39 0.0995 0.0928 7/8 3-1/2 4 Uncoated 22
    $19.79
  • A52505 ACT #39 0.0995 0.0928 7/8 3-1/2 4 Uncoated 20
    $18.43
  • A51556 ACT 0.0475 0.051 1/2 2-1/2 4 Uncoated 17
    $26.55
  • A50200 ACT 0.0790 0.0790 1/2 1-3/4 7/8 0.0120 4 Uncoated 14
    $38.72
  • A78817 ACT #40 0.098 0.0928 7/8 3-1/2 4 Uncoated 16
    $20.91
  • A53186 ACT #23 0.1460 0.146 1 4 4 Uncoated Available to Order*
    $28.49
  • A53010 ACT #23 0.1540 0.146 1 4 4 Uncoated 12
    $26.88
  • A52798 ACT #38 0.1015 0.095 7/8 3-1/2 4 Uncoated 12
    $19.79
  • A52506 ACT #38 0.1015 0.095 7/8 3-1/2 4 Uncoated 30
    $18.43
  • A51557 ACT 0.048 0.051 1/2 2-1/2 4 Uncoated 21
    $26.55
  • A50201 ACT 0.0800 0.0800 1/2 1-3/4 7/8 0.0120 4 Uncoated 26
    $38.72
  • A53187 ACT 5/32 0.1510 0.151 1 4 4 Uncoated 27
    $28.49
  • A53011 ACT 5/32 0.1563 0.151 1 4 4 Uncoated 13
    $26.96
  • A52799 ACT #37 0.1040 0.095 7/8 3-1/2 4 Uncoated 19
    $19.79
  • A52507 ACT #37 0.1040 0.095 7/8 3-1/2 4 Uncoated 17
    $18.43
  • A51558 ACT 0.0485 0.051 1/2 2-1/2 4 Uncoated 18
    $26.55
  • A50202 ACT #46 0.0810 0.0810 1/2 2 7/8 0.0120 4 Uncoated Available to Order*
    $36.69
  • A78818 ACT 2.5mm 0.0984 0.0928 7/8 3-1/2 4 Uncoated 29
    $20.91
  • A53188 ACT #22 0.1510 0.151 1 4 6 Uncoated 15
    $28.49
  • A53012 ACT #22 0.1570 0.151 1 4 6 Uncoated 24
    $26.88
  • A52800 ACT #36 0.1065 0.103 7/8 3-1/2 4 Uncoated 12
    $19.79
  • A52508 ACT #36 0.1065 0.103 7/8 3-1/2 4 Uncoated 23
    $18.43
  • A51559 ACT 0.049 0.051 1/2 2-1/2 4 Uncoated 22
    $26.55
  • A50203 ACT #45 0.0820 0.0820 1/2 2 7/8 0.0120 4 Uncoated 21
    $36.69
  • A53189 ACT 4.0mm 0.1510 0.151 1 4 6 Uncoated 18
    $28.49
  • A53013 ACT 4.0mm 0.1575 0.151 1 4 6 Uncoated 15
    $26.96
  • A52801 ACT 7/64 0.1094 0.103 7/8 3-1/2 4 Uncoated 23
    $20.54
  • A52509 ACT 7/64 0.1094 0.103 7/8 3-1/2 4 Uncoated 56
    $18.77
  • A51560 ACT 0.0495 0.051 1/2 2-1/2 4 Uncoated 12
    $26.55
  • A50204 ACT 0.0830 0.0830 1/2 2 7/8 0.0120 4 Uncoated 24
    $38.72
  • A78819 ACT #39 0.0995 0.0928 7/8 3-1/2 4 Uncoated 13
    $20.91
  • A53190 ACT #21 0.1530 0.153 1-1/8 4-1/2 6 Uncoated 18
    $30.59
  • A53014 ACT #21 0.1590 0.153 1-1/8 4-1/2 6 Uncoated 7
    $27.66
  • A52802 ACT #35 0.1100 0.103 7/8 3-1/2 4 Uncoated 14
    $20.54
  • A52510 ACT #35 0.1100 0.103 7/8 3-1/2 4 Uncoated 29
    $18.77
  • A51561 ACT 0.05 0.051 1/2 2-1/2 4 Uncoated 47
    $26.55
  • A50205 ACT 0.0840 0.0840 1/2 2 7/8 0.0120 4 Uncoated 22
    $38.72
  • A53191 ACT #20 0.1530 0.153 1-1/8 4-1/2 6 Uncoated 13
    $30.59
  • A53015 ACT #20 0.1610 0.153 1-1/8 4-1/2 6 Uncoated 25
    $27.66
  • A52803 ACT #34 0.1110 0.1055 7/8 3-1/2 4 Uncoated 14
    $20.54
  • A52511 ACT #34 0.1110 0.1055 7/8 3-1/2 4 Uncoated 11
    $18.77
  • A51562 ACT 0.0505 0.051 1/2 2-1/2 4 Uncoated 9
    $26.55
  • A50206 ACT 0.0850 0.0850 1/2 2 7/8 0.0120 4 Uncoated 17
    $38.72
  • A78820 ACT #38 0.1015 0.095 7/8 3-1/2 4 Uncoated 13
    $20.91
  • A53192 ACT #19 0.1595 0.1595 1-1/8 4-1/2 6 Uncoated 16
    $30.59
  • A53016 ACT #19 0.1660 0.1595 1-1/8 4-1/2 6 Uncoated 15
    $27.66
  • A52804 ACT #33 0.1130 0.1055 7/8 3-1/2 4 Uncoated 13
    $20.54
  • A52512 ACT #33 0.1130 0.1055 7/8 3-1/2 4 Uncoated 16
    $18.77
  • A51563 ACT 0.051 0.051 1/2 2-1/2 4 Uncoated 16
    $26.55
  • A50207 ACT #44 0.0860 0.0860 1/2 2 7/8 0.0120 4 Uncoated 14
    $36.69
  • A53017 ACT #18 0.1695 0.1595 1-1/8 4-1/2 6 Uncoated 16
    $27.66
  • A52805 ACT #32 0.1160 0.112 7/8 3-1/2 4 Uncoated 20
    $20.54
  • A52513 ACT #32 0.1160 0.112 7/8 3-1/2 4 Uncoated 19
    $18.77
  • A51564 ACT 0.0515 0.051 1/2 2-1/2 4 Uncoated 8
    $26.55
  • A50208 ACT 0.0870 0.0870 1/2 2 7/8 0.0120 4 Uncoated 14
    $38.72
  • A78821 ACT #37 0.104 0.095 7/8 3-1/2 4 Uncoated 3
    $20.91
  • A53194 ACT 11/64 0.1645 0.1645 1-1/8 4-1/2 6 Uncoated 18
    $30.59
  • A53018 ACT 11/64 0.1719 0.1645 1-1/8 4-1/2 6 Uncoated 3
    $27.66
  • A52806 ACT 3.0mm 0.1181 0.112 7/8 3-1/2 4 Uncoated 29
    $20.54
  • A52514 ACT 3.0mm 0.1181 0.112 7/8 3-1/2 4 Uncoated 31
    $18.77
  • A51565 ACT 0.0525 0.051 1/2 2-1/2 4 Uncoated 15
    $26.55

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

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