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
    A78669 ACT 3/64 0.0469 0.0404 3/8 1-1/2 4 Uncoated Available to Order*
    $29.65
  • A53134 ACT 1.0mm 0.0394 0.0394 1/2 2-1/2 4 Uncoated 19
    $27.54
  • A52958 ACT 1.0mm 0.0394 0.0394 1/2 2-1/2 4 Uncoated 14
    $25.03
  • A52746 ACT #80 0.0135 0.0135 3/8 3/4 2 Uncoated 11
    $28.91
  • A52454 ACT #80 0.0135 0.0135 3/8 3/4 2 Uncoated 21
    $25.94
  • A50149 ACT #60 0.0400 0.0350 1/4 1-1/2 0.0000 0.0070 4 Uncoated 15
    $32.90
  • A78793 ACT 1.0mm 0.0394 0.0394 1/2 2-1/2 4 Uncoated Available to Order*
    $23.83
  • A78670 ACT 1/16 0.0625 0.0625 3/8 1-1/2 4 Uncoated Available to Order*
    $29.65
  • A53135 ACT #60 0.0390 0.039 1/2 2-1/2 4 Uncoated 21
    $27.54
  • A52959 ACT #60 0.0400 0.039 1/2 2-1/2 4 Uncoated 14
    $25.03
  • A52747 ACT #79 0.0145 0.0145 3/8 3/4 2 Uncoated 8
    $28.91
  • A52455 ACT #79 0.0145 0.0145 3/8 3/4 2 Uncoated 5
    $25.94
  • A50150 ACT #59 0.0410 0.0360 3/8 1-1/2 0.0000 0.0070 4 Uncoated 19
    $32.90
  • A78671 ACT 5/64 0.0781 0.0781 1/4 1-3/4 4 Uncoated Available to Order*
    $29.65
  • A53136 ACT #59 0.0390 0.039 1/2 2-1/2 4 Uncoated 23
    $27.54
  • A52960 ACT #59 0.0410 0.039 1/2 2-1/2 4 Uncoated 12
    $25.03
  • A52748 ACT 1/64 0.0156 0.0156 3/8 3/4 2 Uncoated 22
    $28.91
  • A52456 ACT 1/64 0.0156 0.0156 3/8 3/4 2 Uncoated 16
    $26.03
  • A50151 ACT #58 0.0420 0.0370 3/8 1-1/2 0.0000 0.0100 4 Uncoated 18
    $32.90
  • A78794 ACT #60 0.04 0.039 1/2 2-1/2 4 Uncoated Available to Order*
    $23.83
  • A78672 ACT 3/32 0.0938 0.0938 1/2 2 4 Uncoated Available to Order*
    $29.65
  • A53137 ACT #58 0.0390 0.039 1/2 2-1/2 4 Uncoated 12
    $27.80
  • A52749 ACT #78 0.0160 0.016 3/8 7/8 2 Uncoated 11
    $28.91
  • A52457 ACT #78 0.0160 0.016 3/8 7/8 2 Uncoated 5
    $26.03
  • A50152 ACT #57 0.0430 0.0380 3/8 1-1/2 0.0000 0.0100 4 Uncoated 32
    $32.90
  • A78673 ACT 7/64 0.1094 0.1094 5/8 2-1/4 4 Uncoated Available to Order*
    $29.65
  • A53138 ACT #57 0.0390 0.039 1/2 2-1/2 4 Uncoated 23
    $27.80
  • A52962 ACT #57 0.0430 0.039 1/2 2-1/2 4 Uncoated 12
    $25.03
  • A52750 ACT #77 0.0180 0.018 3/8 7/8 2 Uncoated 9
    $28.91
  • A52458 ACT #77 0.0180 0.018 3/8 7/8 2 Uncoated 13
    $25.94
  • A50153 ACT 0.0440 0.0390 3/8 1-1/2 0.0000 0.0100 4 Uncoated 20
    $34.73
  • A78795 ACT #59 0.041 0.039 1/2 2-1/2 4 Uncoated Available to Order*
    $23.83
  • A78674 ACT 1/8 0.125 0.125 5/8 2-1/4 4 Uncoated Available to Order*
    $31.45
  • A52963 ACT #56 0.0465 0.0455 1/2 2-1/2 4 Uncoated 7
    $25.03
  • A52751 ACT #76 0.0200 0.02 3/8 7/8 2 Uncoated 14
    $28.91
  • A52459 ACT #76 0.0200 0.02 3/8 7/8 2 Uncoated 16
    $26.03
  • A50154 ACT 0.0450 0.0400 3/8 1-1/2 0.0000 0.0100 4 Uncoated 16
    $34.73
  • A78675 ACT 9/64 0.1406 0.1406 3/4 2-1/2 4 Uncoated Available to Order*
    $35.67
  • A52964 ACT 3/64 0.0469 0.0455 1/2 2-1/2 4 Uncoated 10
    $25.03
  • A52752 ACT #75 0.0210 0.021 1/2 1 3 Uncoated 15
    $28.91
  • A52460 ACT #75 0.0210 0.021 1/2 1 3 Uncoated 11
    $25.94
  • A50155 ACT 0.0460 0.0410 3/8 1-1/2 0.0000 0.0100 4 Uncoated 9
    $34.73
  • A78796 ACT #58 0.042 0.039 1/2 2-1/2 4 Uncoated Available to Order*
    $23.83
  • A78676 ACT 5/32 0.1563 0.1563 3/4 2-1/2 4 Uncoated Available to Order*
    $37.60
  • A52965 ACT #55 0.0520 0.051 1/2 2-1/2 4 Uncoated 11
    $25.03
  • A52753 ACT #74 0.0225 0.0225 1/2 1 3 Uncoated 12
    $28.91
  • A52461 ACT #74 0.0225 0.0225 1/2 1 3 Uncoated 12
    $26.03
  • A51512 ACT 0.014 0.0135 3/8 3/4 2 Uncoated 17
    $32.41
  • A50156 ACT #56 0.0465 0.0420 3/8 1-1/2 0.0000 0.0100 4 Uncoated 100
    $32.90
  • A78677 ACT 11/64 0.1719 0.1719 7/8 2-3/4 4 Uncoated Available to Order*
    $42.13
  • A53142 ACT #54 0.0510 0.051 1/2 2-1/2 4 Uncoated 16
    $27.54
  • A52966 ACT #54 0.0550 0.051 1/2 2-1/2 4 Uncoated 17
    $25.03
  • A52754 ACT #73 0.0240 0.024 1/2 1-1/8 3 Uncoated 7
    $28.91
  • A52462 ACT #73 0.0240 0.024 1/2 1-1/8 3 Uncoated 10
    $26.03
  • A51513 ACT 0.015 0.0156 3/8 3/4 2 Uncoated 10
    $32.33
  • A50157 ACT 3/64 0.0469 0.0420 3/8 1-1/2 0.0000 0.0100 4 Uncoated 23
    $31.39
  • A78797 ACT #57 0.043 0.039 1/2 2-1/2 4 Uncoated Available to Order*
    $23.83
  • A78678 ACT 3/16 0.1875 0.1875 7/8 2-3/4 4 Uncoated Available to Order*
    $42.13
  • A53143 ACT 1.5mm 0.0510 0.051 1/2 2-1/2 4 Uncoated 10
    $27.54
  • A52967 ACT 1.5mm 0.0591 0.051 1/2 2-1/2 4 Uncoated 9
    $25.03
  • A52755 ACT #72 0.0250 0.025 1/2 1-1/8 3 Uncoated 16
    $28.91
  • A52463 ACT #72 0.0250 0.025 1/2 1-1/8 3 Uncoated 19
    $26.03
  • A51514 ACT 0.0155 0.0156 3/8 3/4 2 Uncoated 10
    $32.33
  • A50158 ACT 0.0470 0.0420 3/8 1-1/2 0.0000 0.0100 4 Uncoated 22
    $34.73
  • A78679 ACT 13/64 0.2031 0.2031 1 3 4 Uncoated Available to Order*
    $50.97
  • A53144 ACT #53 0.0585 0.0585 1/2 2-1/2 4 Uncoated 8
    $27.54
  • A52968 ACT #53 0.0595 0.0585 1/2 2-1/2 4 Uncoated 15
    $25.03
  • A52756 ACT #71 0.0260 0.026 1/2 1-1/4 3 Uncoated 12
    $28.91
  • A52464 ACT #71 0.0260 0.026 1/2 1-1/4 3 Uncoated 21
    $26.03
  • A51515 ACT 0.0165 0.018 3/8 7/8 2 Uncoated 20
    $32.33
  • A50159 ACT 0.0480 0.0430 3/8 1-1/2 0.0000 0.0100 4 Uncoated 100
    $34.73
  • A78798 ACT #56 0.0465 0.0455 1/2 2-1/2 4 Uncoated Available to Order*
    $23.83
  • A78680 ACT 7/32 0.2188 0.2188 1 3 4 Uncoated Available to Order*
    $50.97
  • A53145 ACT 1/16 0.0585 0.0585 1/2 2-1/2 4 Uncoated 21
    $27.80
  • A52969 ACT 1/16 0.0625 0.0585 1/2 2-1/2 4 Uncoated 8
    $25.03
  • A52757 ACT #70 0.0280 0.028 1/2 1-1/4 3 Uncoated 16
    $28.91
  • A52465 ACT #70 0.0280 0.028 1/2 1-1/4 3 Uncoated 11
    $25.94
  • A51516 ACT 0.017 0.018 3/8 7/8 2 Uncoated 5
    $32.33
  • A50160 ACT 0.0490 0.0440 3/8 1-1/2 0.0000 0.0100 4 Uncoated 21
    $34.73
  • A78681 ACT 15/64 0.2344 0.2344 1 3 4 Uncoated Available to Order*
    $55.82
  • A53146 ACT #52 0.0585 0.0585 1/2 2-1/2 4 Uncoated 71
    $27.80
  • A52970 ACT #52 0.0635 0.0585 1/2 2-1/2 4 Uncoated 7
    $25.03
  • A52758 ACT #69 0.0292 0.0292 1/2 1-3/8 3 Uncoated 19
    $28.91
  • A52466 ACT #69 0.0292 0.0292 1/2 1-3/8 3 Uncoated 15
    $25.94
  • A51517 ACT 0.0175 0.018 3/8 7/8 2 Uncoated 13
    $32.33
  • A50161 ACT 0.0500 0.0450 3/8 1-1/2 0.0000 0.0100 4 Uncoated 17
    $34.73
  • A78799 ACT 3/64 0.0469 0.0455 1/2 2-1/2 4 Uncoated Available to Order*
    $23.83
  • A78682 ACT 1/4 0.25 0.25 1 3 4 Uncoated Available to Order*
    $55.82
  • A53147 ACT #51 0.0660 0.066 3/4 3 4 Uncoated 19
    $22.32
  • A52971 ACT #51 0.0670 0.066 3/4 3 4 Uncoated 13
    $20.16
  • A52759 ACT #68 0.0310 0.031 1/2 1-3/8 3 Uncoated 13
    $28.91
  • A52467 ACT #68 0.0310 0.031 1/2 1-3/8 3 Uncoated 42
    $26.03
  • A51518 ACT 0.0185 0.02 3/8 7/8 2 Uncoated 18
    $32.41
  • A50162 ACT 0.0510 0.0510 3/8 1-1/2 3/4 0.0100 4 Uncoated 17
    $34.73
  • A78683 ACT 17/64 0.2656 0.2656 1-1/8 3-1/4 6 Uncoated Available to Order*
    $67.99
  • A53148 ACT #50 0.0660 0.066 3/4 3 4 Uncoated 43
    $22.32
  • A52972 ACT #50 0.0700 0.066 3/4 3 4 Uncoated 19
    $20.08
  • A52760 ACT 1/32 0.0313 0.0312 1/2 1-3/8 3 Uncoated 18
    $23.83
  • A52468 ACT 1/32 0.0312 0.0312 1/2 1-3/8 3 Uncoated 22
    $20.50
  • A51519 ACT 0.019 0.02 3/8 7/8 2 Uncoated 17
    $32.41

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

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