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
    A50504 ACT 21/64 0.3281 0.3281 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated Available to Order*
    $100.35
  • A51861 ACT 0.2315 0.2265 1-1/2 6 6 Uncoated 21
    $32.49
  • A50505 ACT 0.3290 0.3290 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 21
    $99.28
  • A51862 ACT 0.232 0.2265 1-1/2 6 6 Uncoated 43
    $32.61
  • A50506 ACT 0.3300 0.3300 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $99.28
  • A51863 ACT 0.2325 0.2265 1-1/2 6 6 Uncoated 15
    $32.49
  • A50507 ACT 0.3310 0.3310 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 14
    $99.28
  • A51864 ACT 0.233 0.2265 1-1/2 6 6 Uncoated 44
    $32.61
  • A50508 ACT Q 0.3320 0.3320 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 17
    $99.28
  • A51865 ACT 0.2335 0.2265 1-1/2 6 6 Uncoated 16
    $32.49
  • A50509 ACT 0.3330 0.3330 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 11
    $99.28
  • A51866 ACT 0.2345 0.2265 1-1/2 6 6 Uncoated 20
    $29.39
  • A50510 ACT 0.3340 0.3340 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $99.28
  • A51867 ACT 0.235 0.2265 1-1/2 6 6 Uncoated 28
    $29.47
  • A50511 ACT 8.5mm 0.3346 8.500 1-1/4 3-1/2 54mm 0.0350 6 Uncoated 14
    $99.28
  • A51868 ACT 0.2355 0.2265 1-1/2 6 6 Uncoated 44
    $29.47
  • A50512 ACT 0.3350 0.3350 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 20
    $99.28
  • A51869 ACT 0.236 0.2265 1-1/2 6 6 Uncoated 41
    $29.47
  • A50513 ACT 0.3360 0.3360 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 15
    $99.28
  • A51870 ACT 0.2365 0.2329 1-1/2 6 6 Uncoated 43
    $29.47
  • A50514 ACT 0.3370 0.3370 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 13
    $99.28
  • A51871 ACT 0.237 0.2329 1-1/2 6 6 Uncoated 26
    $29.47
  • A50515 ACT 0.3380 0.3380 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 8
    $99.28
  • A51872 ACT 0.2375 0.2329 1-1/2 6 6 Uncoated 27
    $29.47
  • A50516 ACT R 0.3390 0.3390 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $100.44
  • A51873 ACT 0.2385 0.2329 1-1/2 6 6 Uncoated 21
    $29.47
  • A50517 ACT 0.3400 0.3400 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 17
    $99.28
  • A51874 ACT 0.239 0.2329 1-1/2 6 6 Uncoated 41
    $29.47
  • A50518 ACT 0.3410 0.3410 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 16
    $99.28
  • A51875 ACT 0.2395 0.2329 1-1/2 6 6 Uncoated 12
    $29.47
  • A50519 ACT 0.3420 0.3420 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $99.28
  • A51876 ACT 0.24 0.2329 1-1/2 6 6 Uncoated 20
    $29.47
  • A50520 ACT 0.3430 0.3430 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 8
    $99.28
  • A51877 ACT 0.2405 0.2329 1-1/2 6 6 Uncoated 10
    $29.47
  • A50521 ACT 11/32 0.3438 0.3438 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 55
    $100.89
  • A51878 ACT 0.241 0.2329 1-1/2 6 6 Uncoated 19
    $29.47
  • A50522 ACT 0.3440 0.3440 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 21
    $99.28
  • A51879 ACT 0.2415 0.2329 1-1/2 6 6 Uncoated 8
    $29.39
  • A50523 ACT 0.3450 0.3450 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 14
    $99.28
  • A51880 ACT 0.2425 0.2329 1-1/2 6 6 Uncoated 14
    $29.47
  • A50524 ACT 0.3460 0.3460 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 15
    $99.28
  • A51881 ACT 0.243 0.2329 1-1/2 6 6 Uncoated 19
    $29.47
  • A50525 ACT 0.3470 0.3470 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 5
    $99.28
  • A51882 ACT 0.2435 0.2329 1-1/2 6 6 Uncoated 28
    $29.39
  • A50526 ACT S 0.3480 0.3480 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 21
    $99.28
  • A51883 ACT 0.244 0.2329 1-1/2 6 6 Uncoated 23
    $29.47
  • A50527 ACT 0.3490 0.3490 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $99.28
  • A51884 ACT 0.2445 0.2329 1-1/2 6 6 Uncoated 9
    $29.47
  • A50528 ACT 0.3500 0.3500 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 17
    $99.28
  • A51885 ACT 0.245 0.2329 1-1/2 6 6 Uncoated 17
    $29.47
  • A50529 ACT 0.3510 0.3510 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $108.40
  • A51886 ACT 0.2455 0.2329 1-1/2 6 6 Uncoated 6
    $29.39
  • A50530 ACT 0.3520 0.3520 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $108.40
  • A51887 ACT 0.2465 0.2405 1-1/2 6 6 Uncoated 17
    $29.47
  • A50531 ACT 0.3530 0.3530 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51888 ACT 0.247 0.2405 1-1/2 6 6 Uncoated 42
    $29.47
  • A50532 ACT 0.3540 0.3540 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51889 ACT 0.2475 0.2405 1-1/2 6 6 Uncoated 14
    $29.47
  • A50533 ACT 9.0mm 0.3543 9.000 1-1/4 3-1/2 54mm 0.0350 6 Uncoated 21
    $113.60
  • A51890 ACT 0.248 0.2405 1-1/2 6 6 Uncoated 100
    $29.47
  • A50534 ACT 0.3550 0.3550 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 20
    $108.40
  • A51891 ACT 0.2485 0.2405 1-1/2 6 6 Uncoated 27
    $29.47
  • A50535 ACT 0.3560 0.3560 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $108.40
  • A51892 ACT 0.2495 0.2405 1-1/2 6 6 Uncoated 64
    $29.47
  • A50536 ACT 0.3570 0.3570 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 19
    $108.40
  • A51893 ACT 0.2505 0.2405 1-1/2 6 6 Uncoated 100
    $37.40
  • A50537 ACT T 0.3580 0.3580 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $108.40
  • A51894 ACT 0.2515 0.2405 1-1/2 6 6 Uncoated 39
    $37.40
  • A50538 ACT 0.3590 0.3590 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 4
    $110.83
  • A51895 ACT 0.252 0.2405 1-1/2 6 6 Uncoated 100
    $37.40
  • A50539 ACT 23/64 0.3594 0.3594 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $107.49
  • A51896 ACT 0.2525 0.2405 1-1/2 6 6 Uncoated 14
    $37.40
  • A50540 ACT 0.3600 0.3600 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 6
    $108.40
  • A51897 ACT 0.253 0.2405 1-1/2 6 6 Uncoated 63
    $37.40
  • A50541 ACT 0.3610 0.3610 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 13
    $108.40
  • A51898 ACT 0.2535 0.2405 1-1/2 6 6 Uncoated 17
    $37.40
  • A50542 ACT 0.3620 0.3620 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51899 ACT 0.254 0.2405 1-1/2 6 6 Uncoated 20
    $37.40
  • A50543 ACT 0.3630 0.3630 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 16
    $108.40
  • A51900 ACT 0.2545 0.2405 1-1/2 6 6 Uncoated 19
    $37.40
  • A50544 ACT 0.3640 0.3640 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 9
    $108.40
  • A51901 ACT 0.255 0.2405 1-1/2 6 6 Uncoated 46
    $37.40
  • A50545 ACT 0.3650 0.3650 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 20
    $108.40
  • A51902 ACT 0.2555 0.2405 1-1/2 6 6 Uncoated 14
    $37.40
  • A50546 ACT 0.3660 0.3660 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 9
    $108.40
  • A51903 ACT 0.256 0.2485 1-1/2 6 6 Uncoated 30
    $37.40
  • A50547 ACT 0.3670 0.3670 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 14
    $108.40
  • A51904 ACT 0.2565 0.2485 1-1/2 6 6 Uncoated 12
    $37.40
  • A50548 ACT U 0.3680 0.3680 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 17
    $108.40
  • A51905 ACT 0.2575 0.2485 1-1/2 6 6 Uncoated 15
    $37.40
  • A50549 ACT 0.3690 0.3690 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 12
    $108.40
  • A51906 ACT 0.258 0.2485 1-1/2 6 6 Uncoated 23
    $37.40
  • A50550 ACT 0.3700 0.3700 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 8
    $108.40
  • A51907 ACT 0.2585 0.2485 1-1/2 6 6 Uncoated 16
    $37.40
  • A50551 ACT 0.3710 0.3710 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 10
    $108.40
  • A51908 ACT 0.259 0.2485 1-1/2 6 6 Uncoated 20
    $37.40
  • A50552 ACT 0.3720 0.3720 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 1
    $108.40
  • A51909 ACT 0.2595 0.2485 1-1/2 6 6 Uncoated 6
    $37.40
  • A50553 ACT 0.3730 0.3730 1-1/4 3-1/2 2-1/8 0.0350 6 Uncoated 11
    $108.40
  • A51910 ACT 0.26 0.2485 1-1/2 6 6 Uncoated 18
    $37.40

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

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