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
    A52683 ACT 22.5mm 0.8858 0.749 2-5/8 10 8 Uncoated 10
    $109.22
  • A51734 ACT 0.1545 0.151 1 4 4 Uncoated 14
    $26.55
  • A50378 ACT 7/32 0.2188 0.2188 1 3 1-3/4 0.0250 4 Uncoated Available to Order*
    $60.40
  • A78739 ACT T 0.358 0.3105 1-3/4 7 6 Uncoated 13
    $38.64
  • A52684 ACT 57/64 0.8906 0.749 2-5/8 10 8 Uncoated 16
    $109.22
  • A51735 ACT 0.155 0.151 1 4 4 Uncoated 21
    $26.55
  • A50379 ACT 0.2190 0.2190 1 3 1-3/4 0.0250 4 Uncoated 14
    $66.91
  • A52685 ACT 23.0mm 0.9055 0.749 2-5/8 10 8 Uncoated 11
    $109.22
  • A51736 ACT 0.1555 0.151 1 4 4 Uncoated 18
    $26.55
  • A50380 ACT 0.2200 0.2200 1 3 1-3/4 0.0250 4 Uncoated 61
    $66.91
  • A78740 ACT 23/64 0.3594 0.3105 1-3/4 7 6 Uncoated 12
    $38.76
  • A52686 ACT 29/32 0.9062 0.749 2-5/8 10 8 Uncoated 6
    $108.81
  • A51737 ACT 0.156 0.151 1 4 4 Uncoated 27
    $26.55
  • A50381 ACT #2 0.2210 0.2210 1 3 1-3/4 0.0250 4 Uncoated 39
    $62.55
  • A52687 ACT 59/64 0.9219 0.749 2-5/8 10 8 Uncoated 8
    $117.13
  • A51738 ACT 0.1565 0.151 1 4 6 Uncoated 47
    $27.70
  • A50382 ACT 0.2220 0.2220 1 3 1-3/4 0.0250 4 Uncoated 10
    $66.91
  • A78741 ACT U 0.368 0.3105 1-3/4 7 6 Uncoated 5
    $38.64
  • A52688 ACT 23.5mm 0.9252 0.749 2-5/8 10 8 Uncoated 12
    $117.13
  • A51739 ACT 0.158 0.153 1-1/8 4-1/2 6 Uncoated 45
    $27.70
  • A50383 ACT 0.2230 0.2230 1 3 1-3/4 0.0250 4 Uncoated 13
    $66.91
  • A52689 ACT 0.9365 O/U 0.9365 0.749 2-5/8 10 8 Uncoated 12
    $117.01
  • A51740 ACT 0.1585 0.153 1-1/8 4-1/2 6 Uncoated 17
    $27.70
  • A50384 ACT 0.2240 0.2240 1 3 1-3/4 0.0250 4 Uncoated 19
    $66.91
  • A78742 ACT .374 O/U 0.374 0.3105 1-3/4 7 6 Uncoated 15
    $36.61
  • A52690 ACT 15/16 0.9375 0.749 2-5/8 10 8 Uncoated 24
    $108.65
  • A51741 ACT 0.1595 0.153 1-1/8 4-1/2 6 Uncoated 18
    $27.70
  • A50385 ACT 0.2250 0.2250 1 3 1-3/4 0.0250 4 Uncoated 4
    $66.91
  • A52691 ACT 0.9385 O/U 0.9385 0.749 2-5/8 10 8 Uncoated 18
    $117.01
  • A51742 ACT 0.16 0.153 1-1/8 4-1/2 6 Uncoated 48
    $27.70
  • A50386 ACT 0.2260 0.2260 1 3 1-3/4 0.0250 4 Uncoated 19
    $73.35
  • A52692 ACT 24.0mm 0.9449 0.749 2-5/8 10 8 Uncoated 19
    $117.01
  • A51743 ACT 0.1605 0.153 1-1/8 4-1/2 6 Uncoated 81
    $27.70
  • A50387 ACT 0.2270 0.2270 1 3 1-3/4 0.0250 4 Uncoated 5
    $73.35
  • A78743 ACT .376 O/U 0.376 0.3105 1-3/4 7 6 Uncoated 8
    $36.61
  • A52693 ACT 61/64 0.9531 0.749 2-5/8 10 8 Uncoated 13
    $117.01
  • A51744 ACT 0.1615 0.1595 1-1/8 4-1/2 6 Uncoated 13
    $27.70
  • A50388 ACT #1 0.2280 0.2280 1 3 1-3/4 0.0250 4 Uncoated 69
    $68.77
  • A52694 ACT 24.5mm 0.9646 0.749 2-5/8 10 8 Uncoated 9
    $116.84
  • A51745 ACT 0.162 0.1595 1-1/8 4-1/2 6 Uncoated 25
    $27.70
  • A50389 ACT 0.2290 0.2290 1 3 1-3/4 0.0250 4 Uncoated 9
    $68.52
  • A78744 ACT V 0.377 0.3105 1-3/4 7 6 Uncoated 21
    $41.84
  • A52695 ACT 31/32 0.9688 0.749 2-5/8 10 8 Uncoated 17
    $127.32
  • A51746 ACT 0.1625 0.1595 1-1/8 4-1/2 6 Uncoated 23
    $27.70
  • A50390 ACT 0.2300 0.2300 1 3 1-3/4 0.0250 4 Uncoated 19
    $73.35
  • A52696 ACT 25.0mm 0.9843 0.874 2-3/4 10-1/2 8 Uncoated 13
    $123.90
  • A51747 ACT 0.163 0.1595 1-1/8 4-1/2 6 Uncoated 19
    $27.70
  • A50391 ACT 0.2310 0.2310 1 3 1-3/4 0.0250 4 Uncoated 18
    $73.35
  • A78745 ACT W 0.386 0.3105 1-3/4 7 6 Uncoated 11
    $41.84
  • A52697 ACT 63/64 0.9844 0.874 2-3/4 10-1/2 8 Uncoated 8
    $123.90
  • A51748 ACT 0.1635 0.1595 1-1/8 4-1/2 6 Uncoated 31
    $27.70
  • A50392 ACT 0.2320 0.2320 1 3 1-3/4 0.0250 4 Uncoated 12
    $73.35
  • A52698 ACT 0.999 O/U 0.9990 0.874 2-3/4 10-1/2 8 Uncoated 11
    $123.90
  • A51749 ACT 0.164 0.1595 1-1/8 4-1/2 6 Uncoated 48
    $27.70
  • A50393 ACT 0.2330 0.2330 1 3 1-3/4 0.0250 4 Uncoated 6
    $73.35
  • A78746 ACT 25/64 0.3906 0.3105 1-3/4 7 6 Uncoated 13
    $41.84
  • A52699 ACT 1 1.0000 0.874 2-3/4 10-1/2 8 Uncoated 20
    $122.87
  • A51750 ACT 0.1645 0.1595 1-1/8 4-1/2 6 Uncoated 8
    $27.70
  • A50394 ACT A 0.2340 0.2340 1 3 1-3/4 0.0250 4 Uncoated 35
    $73.35
  • A52700 ACT 1.001 O/U 1.0010 0.874 2-3/4 10-1/2 8 Uncoated 24
    $131.64
  • A51751 ACT 0.165 0.1595 1-1/8 4-1/2 6 Uncoated 20
    $27.70
  • A50395 ACT 15/64 0.2344 0.2344 1 3 1-3/4 0.0250 4 Uncoated 14
    $65.97
  • A78747 ACT 10.0mm 0.3937 0.3105 1-3/4 7 6 Uncoated 3
    $41.84
  • A51752 ACT 0.1655 0.1595 1-1/8 4-1/2 6 Uncoated 17
    $27.70
  • A50396 ACT 0.2350 0.2350 1 3 1-3/4 0.0250 4 Uncoated 15
    $73.35
  • A52702 ACT 1-1/16 1.0625 0.874 2-3/4 10-1/2 8 Uncoated 13
    $135.43
  • A51753 ACT 0.1665 0.1595 1-1/8 4-1/2 6 Uncoated 20
    $27.70
  • A50397 ACT 0.2360 0.2360 1 3 1-3/4 0.0250 4 Uncoated 17
    $73.35
  • A78748 ACT X 0.397 0.3105 1-3/4 7 6 Uncoated 14
    $41.84
  • A51754 ACT 0.167 0.1595 1-1/8 4-1/2 6 Uncoated 22
    $27.70
  • A50398 ACT 6.0mm 0.2362 6.000 1 3 44mm 0.0250 4 Uncoated 5
    $70.17
  • A51755 ACT 0.1675 0.1595 1-1/8 4-1/2 6 Uncoated 8
    $27.70
  • A50399 ACT 0.2370 0.2370 1 3 1-3/4 0.0250 4 Uncoated 17
    $73.35
  • A78749 ACT Y 0.404 0.3105 1-3/4 7 6 Uncoated 3
    $43.41
  • A51756 ACT 0.168 0.1595 1-1/8 4-1/2 6 Uncoated 11
    $27.70
  • A50400 ACT B 0.2380 0.2380 1 3 1-3/4 0.0250 4 Uncoated 17
    $73.35
  • A51757 ACT 0.1685 0.1595 1-1/8 4-1/2 6 Uncoated 19
    $27.70
  • A50401 ACT 0.2390 0.2390 1 3 1-3/4 0.0250 4 Uncoated 19
    $73.35
  • A78750 ACT 13/32 0.4063 0.3105 1-3/4 7 6 Uncoated 12
    $43.41
  • A51758 ACT 0.169 0.1595 1-1/8 4-1/2 6 Uncoated 18
    $27.70
  • A50402 ACT 0.2400 0.2400 1 3 1-3/4 0.0250 4 Uncoated 11
    $73.35
  • A51759 ACT 0.17 0.1645 1-1/8 4-1/2 6 Uncoated 26
    $27.70
  • A50403 ACT 0.2410 0.2410 1 3 1-3/4 0.0250 4 Uncoated 11
    $73.35
  • A78751 ACT Z 0.413 0.373 1-3/4 7 6 Uncoated 10
    $43.41
  • A51760 ACT 0.1705 0.1645 1-1/8 4-1/2 6 Uncoated 12
    $27.70
  • A50404 ACT C 0.2420 0.2420 1 3 1-3/4 0.0250 4 Uncoated 12
    $73.35
  • A51761 ACT 0.171 0.1645 1-1/8 4-1/2 6 Uncoated 17
    $27.70
  • A50405 ACT 0.2430 0.2430 1 3 1-3/4 0.0250 4 Uncoated 16
    $73.35
  • A78690 ACT 10.5mm 0.4134 0.373 1-3/4 7 6 Uncoated 3
    $43.41
  • A51762 ACT 0.1715 0.1645 1-1/8 4-1/2 6 Uncoated 16
    $27.70
  • A50406 ACT 0.2440 0.2440 1 3 1-3/4 0.0250 4 Uncoated Available to Order*
    $73.35
  • A51763 ACT 0.172 0.1645 1-1/8 4-1/2 6 Uncoated 16
    $26.05
  • A50407 ACT 0.2450 0.2450 1 3 1-3/4 0.0250 4 Uncoated 17
    $73.35
  • A78691 ACT 27/64 0.4219 0.373 1-3/4 7 6 Uncoated 12
    $43.62
  • A51764 ACT 0.1725 0.1645 1-1/8 4-1/2 6 Uncoated 20
    $26.05
  • A50408 ACT D 0.2460 0.2460 1 3 1-3/4 0.0250 4 Uncoated 22
    $73.35
  • A51765 ACT 0.1735 0.1704 1-1/8 4-1/2 6 Uncoated 14
    $26.05
  • A50409 ACT 0.2470 0.2470 1 3 1-3/4 0.0250 4 Uncoated 10
    $73.35
  • A78692 ACT 11.0mm 0.4331 0.373 1-3/4 7 6 Uncoated 13
    $43.41
  • A51766 ACT 0.174 0.1704 1-1/8 4-1/2 6 Uncoated 15
    $26.05

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

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