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
    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
  • A51612 ACT 0.0805 0.0771 3/4 3 4 Uncoated 46
    $22.97
  • A50256 ACT 0.1235 0.1235 5/8 2-1/4 1-1/8 0.0150 4 Uncoated Available to Order*
    $48.82
  • A53242 ACT 19/64 0.2792 0.2792 1-1/2 6 6 Uncoated 7
    $44.12
  • A53066 ACT 19/64 0.2969 0.2792 1-1/2 6 6 Uncoated 12
    $34.51
  • A52854 ACT A 0.2340 0.2265 1-1/2 6 6 Uncoated 16
    $31.22
  • A52562 ACT A 0.2340 0.2265 1-1/2 6 6 Uncoated 18
    $26.85
  • A51613 ACT 0.0815 0.0771 3/4 3 4 Uncoated 17
    $22.97
  • A50257 ACT 0.1240 0.1240 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 35
    $36.91
  • A78766 ACT #20 0.161 0.153 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53243 ACT N 0.2792 0.2792 1-1/2 6 6 Uncoated 11
    $44.12
  • A53067 ACT N 0.3020 0.2792 1-1/2 6 6 Uncoated 7
    $34.51
  • A52855 ACT 15/64 0.2344 0.2265 1-1/2 6 6 Uncoated 14
    $31.22
  • A52563 ACT 15/64 0.2344 0.2265 1-1/2 6 6 Uncoated 23
    $26.85
  • A51614 ACT 0.0825 0.081 3/4 3 4 Uncoated 16
    $22.89
  • A50258 ACT 0.1245 0.1245 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 80
    $40.58
  • A53244 ACT 0.3115 O/U 0.2792 0.2792 1-1/2 6 6 Uncoated 22
    $41.93
  • A53068 ACT 0.3115 O/U 0.3115 0.2792 1-1/2 6 6 Uncoated 6
    $32.66
  • A52856 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated 29
    $31.39
  • A52564 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated 88
    $28.29
  • A51615 ACT 0.083 0.081 3/4 3 4 Uncoated 22
    $22.97
  • A50259 ACT 1/8 0.1250 0.1250 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $33.24
  • A78767 ACT #19 0.166 0.1595 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53245 ACT 5/16 0.2792 0.2792 1-1/2 6 6 Uncoated 19
    $40.05
  • A53069 ACT 5/16 0.3125 0.2792 1-1/2 6 6 Uncoated 29
    $31.22
  • A52857 ACT B 0.2380 0.2329 1-1/2 6 6 Uncoated 15
    $31.39
  • A52565 ACT B 0.2380 0.2329 1-1/2 6 6 Uncoated 16
    $28.29
  • A51616 ACT 0.0835 0.081 3/4 3 4 Uncoated 18
    $22.97
  • A50260 ACT 0.1255 0.1255 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 55
    $40.58
  • A53246 ACT 0.3135 O/U 0.2792 0.2792 1-1/2 6 6 Uncoated 21
    $41.93
  • A53070 ACT 0.3135 O/U 0.3135 0.2792 1-1/2 6 6 Uncoated 16
    $32.66
  • A52858 ACT C 0.2420 0.2329 1-1/2 6 6 Uncoated 20
    $31.39
  • A52566 ACT C 0.2420 0.2329 1-1/2 6 6 Uncoated 15
    $28.29
  • A51617 ACT 0.084 0.081 3/4 3 4 Uncoated 29
    $22.97
  • A50261 ACT 0.1260 0.1260 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $36.91
  • A78768 ACT #18 0.1695 0.1595 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53247 ACT 8.0mm 0.2792 0.2792 1-1/2 6 6 Uncoated 20
    $44.25
  • A53071 ACT 8.0mm 0.3150 0.2792 1-1/2 6 6 Uncoated 22
    $34.51
  • A52859 ACT D 0.2460 0.2329 1-1/2 6 6 Uncoated 13
    $28.62
  • A52567 ACT D 0.2460 0.2329 1-1/2 6 6 Uncoated 28
    $28.29
  • A51618 ACT 0.0845 0.081 3/4 3 4 Uncoated 7
    $22.97
  • A50262 ACT 0.1265 0.1265 5/8 2-1/4 1-1/8 0.0150 4 Uncoated Available to Order*
    $48.82
  • A53248 ACT O 0.2792 0.2792 1-1/2 6 6 Uncoated 10
    $44.12
  • A53072 ACT O 0.3160 0.2792 1-1/2 6 6 Uncoated 14
    $34.51
  • A52860 ACT 0.249 O/U 0.2490 0.2405 1-1/2 6 6 Uncoated 17
    $28.17
  • A52568 ACT 0.249 O/U 0.2490 0.2405 1-1/2 6 6 Uncoated 83
    $26.52
  • A51619 ACT 0.085 0.081 3/4 3 4 Uncoated 26
    $22.97
  • A50263 ACT 0.1270 0.1270 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 100
    $36.91
  • A53249 ACT P 0.2792 0.2792 1-1/2 6 6 Uncoated 18
    $47.83
  • A53073 ACT P 0.3230 0.2792 1-1/2 6 6 Uncoated 13
    $36.91
  • A52861 ACT 1/4 0.2500 0.2405 1-1/2 6 6 Uncoated 100
    $26.76
  • A52569 ACT 1/4 0.2500 0.2405 1-1/2 6 6 Uncoated 100
    $25.15
  • A51620 ACT 0.0855 0.081 3/4 3 4 Uncoated 24
    $22.97
  • A50264 ACT 0.1275 0.1275 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 19
    $48.82
  • A78769 ACT #17 0.173 0.1645 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53250 ACT 21/64 0.2792 0.2792 1-1/2 6 6 Uncoated 22
    $47.83
  • A53074 ACT 21/64 0.3281 0.2792 1-1/2 6 6 Uncoated 7
    $36.91
  • A52862 ACT 0.251 O/U 0.2510 0.2405 1-1/2 6 6 Uncoated 67
    $28.29
  • A52570 ACT 0.251 O/U 0.2510 0.2405 1-1/2 6 6 Uncoated 100
    $26.52
  • A51621 ACT 0.0865 0.081 3/4 3 4 Uncoated 34
    $22.97
  • A50265 ACT 0.1280 0.1280 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 18
    $36.91
  • A53251 ACT Q 0.2792 0.2792 1-1/2 6 6 Uncoated 13
    $47.55
  • A53075 ACT Q 0.3320 0.2792 1-1/2 6 6 Uncoated 12
    $36.91
  • A52863 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 19
    $31.39
  • A52571 ACT 6.5mm 0.2559 0.2405 1-1/2 6 6 Uncoated 12
    $28.29
  • A51622 ACT 0.087 0.081 3/4 3 4 Uncoated 14
    $22.97
  • A50266 ACT #30 0.1285 0.1285 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 60
    $36.91
  • A78770 ACT #16 0.177 0.1704 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53252 ACT 8.5mm 0.2792 0.2792 1-1/2 6 6 Uncoated 9
    $47.55
  • A53076 ACT 8.5mm 0.3346 0.2792 1-1/2 6 6 Uncoated 9
    $36.91
  • A52864 ACT F 0.2570 0.2485 1-1/2 6 6 Uncoated 20
    $31.39
  • A52572 ACT F 0.2570 0.2485 1-1/2 6 6 Uncoated 61
    $28.29
  • A51623 ACT 0.0875 0.081 3/4 3 4 Uncoated 6
    $22.89
  • A50267 ACT 0.1290 0.1290 5/8 2-1/4 1-1/8 0.0150 4 Uncoated 20
    $36.91
  • A53253 ACT R 0.2792 0.2792 1-1/2 6 6 Uncoated Available to Order*
    $47.55
  • A53077 ACT R 0.3390 0.2792 1-1/2 6 6 Uncoated 20
    $36.91
  • A52865 ACT G 0.2610 0.2485 1-1/2 6 6 Uncoated 25
    $31.39
  • A52573 ACT G 0.2610 0.2485 1-1/2 6 6 Uncoated Available to Order*
    $28.29
  • A51624 ACT 0.088 0.081 3/4 3 4 Uncoated 10
    $22.97
  • A50268 ACT 0.1300 0.1300 5/8 2-1/2 1-1/8 0.0150 4 Uncoated 66
    $36.91
  • A78771 ACT 4.5mm 0.1772 0.1704 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53254 ACT 11/32 0.2792 0.2792 1-1/2 6 6 Uncoated 16
    $47.55
  • A53078 ACT 11/32 0.3438 0.2792 1-1/2 6 6 Uncoated 18
    $36.91
  • A52866 ACT 17/64 0.2656 0.2485 1-1/2 6 6 Uncoated 18
    $42.43
  • A52574 ACT 17/64 0.2656 0.2485 1-1/2 6 6 Uncoated 14
    $31.33
  • A51625 ACT 0.0885 0.081 3/4 3 4 Uncoated 14
    $22.97
  • A50269 ACT 0.1310 0.1310 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 57
    $41.97
  • A78772 ACT #15 0.18 0.1755 1-1/8 4-1/2 6 Uncoated Available to Order*
    $25.44
  • A53255 ACT S 0.3105 0.3105 1-3/4 6 6 Uncoated 6
    $48.24
  • A53079 ACT S 0.3480 0.3105 1-3/4 6 6 Uncoated 15
    $37.32
  • A52867 ACT H 0.2660 0.2485 1-1/2 6 6 Uncoated 20
    $42.43
  • A52575 ACT H 0.2660 0.2485 1-1/2 6 6 Uncoated 24
    $31.33
  • A51626 ACT 0.0895 0.088 3/4 3 4 Uncoated 17
    $22.97
  • A50270 ACT 0.1320 0.1320 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 100
    $41.97
  • A53256 ACT 9.0mm 0.3105 0.3105 1-3/4 7 6 Uncoated 8
    $48.24
  • A53080 ACT 9.0mm 0.3543 0.3105 1-3/4 7 6 Uncoated 13
    $37.32
  • A52868 ACT I 0.2720 0.2485 1-1/2 6 6 Uncoated 16
    $42.43
  • A52576 ACT I 0.2720 0.2485 1-1/2 6 6 Uncoated 15
    $31.33

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

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