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
    A53050 ACT 0.249 O/U 0.2490 0.2405 1-1/2 6 6 Uncoated 9
    $33.12
  • A52838 ACT #12 0.1890 0.1805 1-1/8 4-1/2 6 Uncoated 18
    $25.07
  • A52546 ACT #12 0.1890 0.1805 1-1/8 4-1/2 6 Uncoated 54
    $23.30
  • A51597 ACT 0.0715 0.066 3/4 3 4 Uncoated 23
    $22.97
  • A50241 ACT #35 0.1100 0.1100 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 23
    $32.90
  • A78758 ACT #26 0.147 0.143 1 4 4 Uncoated Available to Order*
    $23.83
  • A53227 ACT 1/4 0.2405 0.2405 1-1/2 6 6 Uncoated 24
    $30.35
  • A53051 ACT 1/4 0.2500 0.2405 1-1/2 6 6 Uncoated 40
    $27.62
  • A52839 ACT #11 0.1910 0.186 1-1/4 5 6 Uncoated 22
    $30.23
  • A52547 ACT #11 0.1910 0.186 1-1/4 5 6 Uncoated 29
    $25.94
  • A51598 ACT 0.072 0.066 3/4 3 4 Uncoated 20
    $22.97
  • A50242 ACT #34 0.1110 0.1110 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 20
    $32.90
  • A53228 ACT 0.251 O/U 0.2405 0.2405 1-1/2 6 6 Uncoated 22
    $38.26
  • A53052 ACT 0.251 O/U 0.2510 0.2405 1-1/2 6 6 Uncoated 17
    $33.12
  • A52840 ACT #10 0.1935 0.186 1-1/4 5 6 Uncoated 25
    $30.23
  • A52548 ACT #10 0.1935 0.186 1-1/4 5 6 Uncoated 21
    $25.94
  • A51599 ACT 0.0725 0.066 3/4 3 4 Uncoated 18
    $22.97
  • A50243 ACT 0.1120 0.1120 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 15
    $34.73
  • A78759 ACT #25 0.1495 0.143 1 4 4 Uncoated Available to Order*
    $23.83
  • A53229 ACT 6.5mm 0.2405 0.2405 1-1/2 6 6 Uncoated 10
    $35.63
  • A53053 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 6
    $30.98
  • A52841 ACT #9 0.1960 0.1895 1-1/4 5 6 Uncoated 15
    $30.23
  • A52549 ACT #9 0.1960 0.1895 1-1/4 5 6 Uncoated 65
    $25.94
  • A51600 ACT 0.0735 0.072 3/4 3 4 Uncoated 17
    $22.97
  • A50244 ACT #33 0.1130 0.1130 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 20
    $32.90
  • A53230 ACT F 0.2485 0.2485 1-1/2 6 6 Uncoated 21
    $35.63
  • A53054 ACT F 0.2570 0.2485 1-1/2 6 6 Uncoated 17
    $31.14
  • A52842 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 20
    $30.23
  • A52550 ACT 5.0mm 0.1969 0.1895 1-1/4 5 6 Uncoated 100
    $25.94
  • A51601 ACT 0.074 0.072 3/4 3 4 Uncoated 19
    $22.97
  • A50245 ACT 0.1140 0.1140 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $34.73
  • A78760 ACT #24 0.152 0.146 1 4 4 Uncoated Available to Order*
    $24.74
  • A53231 ACT G 0.2485 0.2485 1-1/2 6 6 Uncoated 8
    $35.63
  • A53055 ACT G 0.2610 0.2485 1-1/2 6 6 Uncoated 6
    $30.98
  • A52843 ACT #8 0.1990 0.1895 1-1/4 5 6 Uncoated 22
    $30.23
  • A52551 ACT #8 0.1990 0.1895 1-1/4 5 6 Uncoated 71
    $25.94
  • A51602 ACT 0.0745 0.072 3/4 3 4 Uncoated 11
    $22.89
  • A50246 ACT 0.1150 0.1150 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 23
    $34.73
  • A53232 ACT 17/64 0.2485 0.2485 1-1/2 6 6 Uncoated 13
    $44.25
  • A53056 ACT 17/64 0.2656 0.2485 1-1/2 6 6 Uncoated 11
    $34.51
  • A52844 ACT #7 0.2010 0.1895 1-1/4 5 6 Uncoated 13
    $30.23
  • A52552 ACT #7 0.2010 0.1895 1-1/4 5 6 Uncoated 29
    $25.94
  • A51603 ACT 0.075 0.072 3/4 3 4 Uncoated 23
    $22.97
  • A50247 ACT #32 0.1160 0.1160 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 19
    $34.77
  • A78761 ACT #23 0.154 0.146 1 4 4 Uncoated Available to Order*
    $24.74
  • A53233 ACT H 0.2485 0.2485 1-1/2 6 6 Uncoated 6
    $44.12
  • A53057 ACT H 0.2660 0.2485 1-1/2 6 6 Uncoated 8
    $34.51
  • A52845 ACT 13/64 0.2031 0.1945 1-1/4 5 6 Uncoated 20
    $30.23
  • A52553 ACT 13/64 0.2031 0.1945 1-1/4 5 6 Uncoated 12
    $25.94
  • A51604 ACT 0.0755 0.072 3/4 3 4 Uncoated 11
    $22.97
  • A50248 ACT 0.1170 0.1170 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 16
    $36.91
  • A53234 ACT I 0.2485 0.2485 1-1/2 6 6 Uncoated 8
    $44.25
  • A53058 ACT I 0.2720 0.2485 1-1/2 6 6 Uncoated 11
    $34.51
  • A52846 ACT #6 0.2040 0.1945 1-1/4 5 6 Uncoated 5
    $30.23
  • A52554 ACT #6 0.2040 0.1945 1-1/4 5 6 Uncoated 15
    $25.94
  • A51605 ACT 0.0765 0.072 3/4 3 4 Uncoated 22
    $22.97
  • A50249 ACT 0.1180 0.1180 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 21
    $36.91
  • A78762 ACT 5/32 0.1563 0.151 1 4 4 Uncoated Available to Order*
    $24.82
  • A53235 ACT 7.0mm 0.2485 0.2485 1-1/2 6 6 Uncoated 14
    $44.12
  • A53059 ACT 7.0mm 0.2756 0.2485 1-1/2 6 6 Uncoated 11
    $34.51
  • A52847 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 14
    $30.23
  • A52555 ACT #5 0.2055 0.2016 1-1/4 5 6 Uncoated 17
    $25.94
  • A51606 ACT 0.077 0.072 3/4 3 4 Uncoated 18
    $22.97
  • A50250 ACT 3.0mm 0.1181 3.000 5/8 2-1/4 28mm 0.0150 4 Uncoated 16
    $33.86
  • A53236 ACT J 0.2485 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $44.25
  • A53060 ACT J 0.2770 0.2485 1-1/2 6 6 Uncoated 3
    $34.51
  • A52848 ACT #4 0.2090 0.2016 1-1/4 5 6 Uncoated 8
    $30.23
  • A52556 ACT #4 0.2090 0.2016 1-1/4 5 6 Uncoated 16
    $25.94
  • A51607 ACT 0.0775 0.072 3/4 3 4 Uncoated 21
    $22.97
  • A50251 ACT 0.1190 0.1190 5/8 2-1/4 1-1/8 0.0150 4 Uncoated Available to Order*
    $36.91
  • A78763 ACT #22 0.157 0.151 1 4 6 Uncoated Available to Order*
    $24.74
  • A53237 ACT K 0.2485 0.2485 1-1/2 6 6 Uncoated 14
    $44.12
  • A53061 ACT K 0.2810 0.2485 1-1/2 6 6 Uncoated 25
    $34.51
  • A52849 ACT #3 0.2130 0.2075 1-1/4 5 6 Uncoated 8
    $30.23
  • A52557 ACT #3 0.2130 0.2075 1-1/4 5 6 Uncoated 21
    $25.94
  • A51608 ACT 0.078 0.072 3/4 3 4 Uncoated 29
    $22.97
  • A50252 ACT #31 0.1200 0.1200 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 30
    $34.77
  • A53238 ACT 9/32 0.2485 0.2485 1-1/2 6 6 Uncoated 6
    $41.93
  • A53062 ACT 9/32 0.2813 0.2485 1-1/2 6 6 Uncoated 16
    $32.66
  • A52850 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated 11
    $30.23
  • A52558 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated 12
    $25.94
  • A51609 ACT 0.079 0.0771 3/4 3 4 Uncoated 35
    $22.97
  • A50253 ACT 0.1210 0.1210 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 17
    $36.91
  • A78764 ACT 4.0mm 0.1575 0.151 1 4 6 Uncoated Available to Order*
    $24.82
  • A53239 ACT L 0.2792 0.2792 1-1/2 6 6 Uncoated 9
    $44.12
  • A53063 ACT L 0.2900 0.2792 1-1/2 6 6 Uncoated 8
    $34.51
  • A52851 ACT 7/32 0.2188 0.2075 1-1/4 5 6 Uncoated 40
    $30.23
  • A52559 ACT 7/32 0.2188 0.2075 1-1/4 5 6 Uncoated 27
    $25.94
  • A51610 ACT 0.0795 0.0771 3/4 3 4 Uncoated 20
    $22.97
  • A50254 ACT 0.1220 0.1220 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 11
    $36.91
  • A53064 ACT M 0.2950 0.2792 1-1/2 6 6 Uncoated 9
    $34.51
  • A52852 ACT #2 0.2210 0.2173 1-1/2 6 6 Uncoated 15
    $31.22
  • A52560 ACT #2 0.2210 0.2173 1-1/2 6 6 Uncoated 25
    $26.85
  • A51611 ACT 0.08 0.0771 3/4 3 4 Uncoated 22
    $22.97
  • A50255 ACT 0.1230 0.1230 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 24
    $36.91
  • A78765 ACT #21 0.159 0.153 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53241 ACT 7.5mm 0.2792 0.2792 1-1/2 6 6 Uncoated 46
    $44.25
  • A53065 ACT 7.5mm 0.2953 0.2792 1-1/2 6 6 Uncoated 6
    $34.51
  • A52853 ACT #1 0.2280 0.2173 1-1/2 6 6 Uncoated 48
    $31.22
  • A52561 ACT #1 0.2280 0.2173 1-1/2 6 6 Uncoated 23
    $26.85

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

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