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
    A51766 ACT 0.174 0.1704 1-1/8 4-1/2 6 Uncoated 19
    $25.20
  • A50410 ACT 0.2480 0.2480 1 3 1-3/4 0.0250 4 Uncoated 20
    $65.77
  • A51767 ACT 0.1745 0.1704 1-1/8 4-1/2 6 Uncoated 8
    $25.20
  • A50411 ACT 0.2485 0.2485 1 3 1-3/4 0.0250 4 Uncoated 14
    $73.93
  • A78693 ACT .4365 O/U 0.4365 0.373 1-3/4 7 6 Uncoated Available to Order*
    $40.11
  • A51768 ACT 0.175 0.1704 1-1/8 4-1/2 6 Uncoated 16
    $25.20
  • A50412 ACT 0.2490 0.2490 1 3 1-3/4 0.0250 4 Uncoated 20
    $65.77
  • A51769 ACT 0.1755 0.1704 1-1/8 4-1/2 6 Uncoated 22
    $25.20
  • A50413 ACT 0.2495 0.2495 1 3 1-3/4 0.0250 4 Uncoated 100
    $69.89
  • A51770 ACT 0.176 0.1704 1-1/8 4-1/2 6 Uncoated 22
    $25.20
  • A50414 ACT 1/4 0.2500 0.2500 1 3 1-3/4 0.0250 4 Uncoated 100
    $59.13
  • A78694 ACT .4385 O/U 0.4385 0.373 1-3/4 7 6 Uncoated Available to Order*
    $39.95
  • A51771 ACT 0.1765 0.1704 1-1/8 4-1/2 6 Uncoated 10
    $25.11
  • A50415 ACT 0.2505 0.2505 1 3 1-3/4 0.0250 4 Uncoated 100
    $69.89
  • A51772 ACT 0.1775 0.1755 1-1/8 4-1/2 6 Uncoated 12
    $25.20
  • A50416 ACT 0.2510 0.2510 1 3 1-3/4 0.0250 4 Uncoated 66
    $65.77
  • A78695 ACT 11.5mm 0.4528 0.373 1-3/4 7 6 Uncoated Available to Order*
    $43.62
  • A51773 ACT 0.178 0.1755 1-1/8 4-1/2 6 Uncoated 12
    $25.20
  • A50417 ACT 0.2515 0.2515 1 3 1-3/4 0.0250 4 Uncoated 38
    $82.14
  • A51774 ACT 0.1785 0.1755 1-1/8 4-1/2 6 Uncoated 11
    $25.11
  • A50418 ACT 0.2520 0.2520 1 3 1-3/4 0.0250 4 Uncoated 75
    $65.77
  • A78696 ACT 29/64 0.4531 0.373 1-3/4 7 6 Uncoated Available to Order*
    $43.78
  • A51775 ACT 0.179 0.1755 1-1/8 4-1/2 6 Uncoated 29
    $25.20
  • A50419 ACT 0.2530 0.2530 1 3 1-3/4 0.0250 4 Uncoated 100
    $65.77
  • A51776 ACT 0.1795 0.1755 1-1/8 4-1/2 6 Uncoated 11
    $25.20
  • A50420 ACT 0.2540 0.2540 1 3 1-3/4 0.0250 4 Uncoated 17
    $65.77
  • A51777 ACT 0.1805 0.1755 1-1/8 4-1/2 6 Uncoated 20
    $25.20
  • A50421 ACT 0.2550 0.2550 1 3 1-3/4 0.0250 6 Uncoated 21
    $65.77
  • A78697 ACT 12.0mm 0.4724 0.4355 2 8 6 Uncoated Available to Order*
    $43.62
  • A51778 ACT 0.181 0.1755 1-1/8 4-1/2 6 Uncoated 63
    $25.20
  • A50422 ACT 6.5mm 0.2559 6.500 1-1/8 3-1/4 47mm 0.0300 6 Uncoated 8
    $69.60
  • A51779 ACT 0.1815 0.1755 1-1/8 4-1/2 6 Uncoated 15
    $25.20
  • A50423 ACT 0.2560 0.2560 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 13
    $80.16
  • A78698 ACT 31/64 0.4844 0.4355 2 8 6 Uncoated Available to Order*
    $43.62
  • A51780 ACT 0.1825 0.1805 1-1/8 4-1/2 6 Uncoated 15
    $25.11
  • A50424 ACT F 0.2570 0.2570 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 37
    $80.16
  • A51781 ACT 0.183 0.1805 1-1/8 4-1/2 6 Uncoated 24
    $25.20
  • A50425 ACT 0.2580 0.2580 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 15
    $80.16
  • A78699 ACT 12.5mm 0.4921 0.4355 2 8 6 Uncoated Available to Order*
    $43.62
  • A51782 ACT 0.1835 0.1805 1-1/8 4-1/2 6 Uncoated 14
    $25.11
  • A50426 ACT 0.2590 0.2590 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 9
    $80.16
  • A51783 ACT 0.184 0.1805 1-1/8 4-1/2 6 Uncoated 10
    $25.20
  • A50427 ACT 0.2600 0.2600 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 18
    $80.16
  • A78700 ACT .499 O/U 0.499 0.4355 2 8 6 Uncoated Available to Order*
    $43.78
  • A51784 ACT 0.1845 0.1805 1-1/8 4-1/2 6 Uncoated 24
    $25.20
  • A50428 ACT G 0.2610 0.2610 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 14
    $80.16
  • A51785 ACT 0.1855 0.1805 1-1/8 4-1/2 6 Uncoated 9
    $25.20
  • A50429 ACT 0.2620 0.2620 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 22
    $80.16
  • A51786 ACT 0.186 0.1805 1-1/8 4-1/2 6 Uncoated 21
    $25.20
  • A50430 ACT 0.2630 0.2630 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 16
    $80.16
  • A78701 ACT .501 O/U 0.501 0.4355 2 8 6 Uncoated Available to Order*
    $43.78
  • A51787 ACT 0.187 0.1805 1-1/8 4-1/2 6 Uncoated 50
    $25.20
  • A50431 ACT 0.2640 0.2640 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 3
    $80.16
  • A51788 ACT 0.188 0.1805 1-1/8 4-1/2 6 Uncoated 100
    $31.71
  • A50432 ACT 0.2650 0.2650 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 3
    $80.16
  • A78702 ACT 17/32 0.5313 0.4355 2 8 6 Uncoated Available to Order*
    $51.32
  • A51789 ACT 0.1895 0.186 1-1/4 5 6 Uncoated 66
    $31.71
  • A50433 ACT 17/64 0.2656 0.2656 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 100
    $71.99
  • A51790 ACT 0.19 0.186 1-1/4 5 6 Uncoated 39
    $31.71
  • A50434 ACT H 0.2660 0.2660 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 22
    $80.16
  • A51791 ACT 0.1905 0.186 1-1/4 5 6 Uncoated 19
    $31.71
  • A50435 ACT 0.2670 0.2670 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 43
    $80.16
  • A51792 ACT 0.1915 0.186 1-1/4 5 6 Uncoated 10
    $31.71
  • A50436 ACT 0.2680 0.2680 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 14
    $80.16
  • A51793 ACT 0.192 0.186 1-1/4 5 6 Uncoated 18
    $31.71
  • A50437 ACT 0.2690 0.2690 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 2
    $80.16
  • A51794 ACT 0.1925 0.186 1-1/4 5 6 Uncoated 17
    $31.71
  • A50438 ACT 0.2700 0.2700 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 13
    $80.16
  • A51795 ACT 0.193 0.186 1-1/4 5 6 Uncoated 28
    $31.71
  • A50439 ACT 0.2710 0.2710 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 27
    $79.71
  • A51796 ACT 0.194 0.1895 1-1/4 5 6 Uncoated 20
    $31.71
  • A50440 ACT I 0.2720 0.2720 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 29
    $80.16
  • A51797 ACT 0.1945 0.1895 1-1/4 5 6 Uncoated 17
    $31.71
  • A50441 ACT 0.2730 0.2730 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 12
    $79.71
  • A78703 ACT 25/32 0.7813 0.624 2-1/2 9-1/2 8 Uncoated Available to Order*
    $84.31
  • A51798 ACT 0.195 0.1895 1-1/4 5 6 Uncoated 22
    $31.71
  • A50442 ACT 0.2740 0.2740 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 14
    $80.16
  • A51799 ACT 0.1955 0.1895 1-1/4 5 6 Uncoated 24
    $31.71
  • A50443 ACT 0.2750 0.2750 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated Available to Order*
    $80.16
  • A51800 ACT 0.1965 0.1895 1-1/4 5 6 Uncoated 22
    $31.71
  • A50444 ACT 7.0mm 0.2756 7.000 1-1/8 3-1/4 47mm 0.0300 6 Uncoated 15
    $87.33
  • A51801 ACT 0.197 0.1895 1-1/4 5 6 Uncoated 17
    $31.71
  • A50445 ACT 0.2760 0.2760 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 22
    $80.16
  • A51802 ACT 0.1975 0.1895 1-1/4 5 6 Uncoated 19
    $31.71
  • A50446 ACT J 0.2770 0.2770 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 11
    $80.16
  • A78704 ACT 29/32 0.9063 0.749 2-5/8 10 8 Uncoated Available to Order*
    $115.28
  • A51803 ACT 0.198 0.1895 1-1/4 5 6 Uncoated 48
    $31.71
  • A50447 ACT 0.2780 0.2780 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 19
    $80.16
  • A51804 ACT 0.1985 0.1895 1-1/4 5 6 Uncoated 12
    $31.71
  • A50448 ACT 0.2790 0.2790 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 13
    $80.16
  • A51805 ACT 0.1995 0.1945 1-1/4 5 6 Uncoated 13
    $31.71
  • A50449 ACT 0.2800 0.2800 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 23
    $80.16
  • A51806 ACT 0.2 0.1945 1-1/4 5 6 Uncoated 24
    $31.71
  • A50450 ACT K 0.2810 0.2810 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 19
    $80.16
  • A53514 ACT 1-1/16 1.0625 0.874 2-3/4 10-1/2 8 Uncoated Available to Order*
    $116.31
  • A51807 ACT 0.2005 0.1945 1-1/4 5 6 Uncoated 12
    $31.71
  • A50451 ACT 9/32 0.2812 0.2812 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 31
    $71.99
  • A51808 ACT 0.2015 0.1945 1-1/4 5 6 Uncoated 23
    $31.71
  • A50452 ACT 0.2820 0.2820 1-1/8 3-1/4 1-7/8 0.0300 6 Uncoated 13
    $80.16
  • A51809 ACT 0.202 0.1945 1-1/4 5 6 Uncoated 20
    $31.71

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

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