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
    A50303 ACT #22 0.1570 0.1570 3/4 2-1/2 1-3/8 0.0170 4 Uncoated 21
    $41.23
  • A78788 ACT 5.5mm 0.2165 0.2075 1-1/4 5 6 Uncoated Available to Order*
    $28.45
  • A53113 ACT 5/8 0.6250 0.5615 2-1/4 9 8 Uncoated 24
    $63.33
  • A52901 ACT X 0.3970 0.3105 1-3/4 7 6 Uncoated 18
    $56.95
  • A52609 ACT X 0.3970 0.3105 1-3/4 7 6 Uncoated 20
    $37.03
  • A51660 ACT 0.1105 0.1055 7/8 3-1/2 4 Uncoated 23
    $19.79
  • A50304 ACT 4.0mm 0.1575 4.000 3/4 2-1/2 35mm 0.0170 4 Uncoated 49
    $44.17
  • A53114 ACT 21/32 0.6563 0.5615 2-1/4 9 8 Uncoated 6
    $68.20
  • A52902 ACT Y 0.4040 0.3105 1-3/4 7 6 Uncoated 55
    $56.95
  • A52610 ACT Y 0.4040 0.3105 1-3/4 7 6 Uncoated 22
    $38.30
  • A51661 ACT 0.1115 0.1055 7/8 3-1/2 4 Uncoated 15
    $19.79
  • A50305 ACT 0.1580 0.1580 3/4 2-1/2 1-3/8 0.5588 4 Uncoated 20
    $44.17
  • A53115 ACT 11/16 0.6875 0.5615 2-1/4 9 8 Uncoated 19
    $73.39
  • A52903 ACT 13/32 0.4063 0.3105 1-3/4 7 6 Uncoated 15
    $56.66
  • A52611 ACT 13/32 0.4062 0.3105 1-3/4 7 6 Uncoated 32
    $38.30
  • A51662 ACT 0.112 0.1055 7/8 3-1/2 4 Uncoated 13
    $19.84
  • A50306 ACT #21 0.1590 0.1590 3/4 2-1/2 1-3/8 0.0220 4 Uncoated 19
    $41.23
  • A78789 ACT #2 0.221 0.2173 1-1/2 6 6 Uncoated Available to Order*
    $29.31
  • A53116 ACT 23/32 0.7188 0.5615 2-1/4 9 8 Uncoated 6
    $85.93
  • A52904 ACT Z 0.4130 0.373 1-3/4 7 6 Uncoated 22
    $56.95
  • A52612 ACT Z 0.4130 0.373 1-3/4 7 6 Uncoated 14
    $38.30
  • A51663 ACT 0.1125 0.1055 7/8 3-1/2 4 Uncoated 19
    $19.79
  • A50307 ACT 0.1600 0.1600 3/4 2-1/2 1-3/8 0.0220 4 Uncoated 20
    $44.17
  • A53117 ACT 3/4 0.7500 0.624 2-1/2 9-1/2 8 Uncoated 16
    $81.64
  • A52905 ACT 10.5mm 0.4134 0.373 1-3/4 7 6 Uncoated 37
    $56.66
  • A52613 ACT 10.5mm 0.4134 0.373 1-3/4 7 6 Uncoated 7
    $38.48
  • A51664 ACT 0.1135 0.112 7/8 3-1/2 4 Uncoated 5
    $19.84
  • A50308 ACT #20 0.1610 0.1610 7/8 2-1/2 1-1/2 0.0220 4 Uncoated 47
    $46.02
  • A78790 ACT #1 0.228 0.2173 1-1/2 6 6 Uncoated Available to Order*
    $29.31
  • A53118 ACT 25/32 0.7813 0.624 2-1/2 9-1/2 8 Uncoated 17
    $88.52
  • A52906 ACT 27/64 0.4219 0.373 1-3/4 7 6 Uncoated 10
    $56.95
  • A52614 ACT 27/64 0.4219 0.373 1-3/4 7 6 Uncoated 22
    $38.30
  • A51665 ACT 0.114 0.112 7/8 3-1/2 4 Uncoated 26
    $19.84
  • A50309 ACT 0.1620 0.1620 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 20
    $49.57
  • A53119 ACT 13/16 0.8125 0.624 2-1/2 9-1/2 8 Uncoated 12
    $88.37
  • A52907 ACT 11.0mm 0.4331 0.373 1-3/4 7 6 Uncoated 13
    $56.95
  • A52615 ACT 11.0mm 0.4331 0.373 1-3/4 7 6 Uncoated 15
    $38.30
  • A51666 ACT 0.1145 0.112 7/8 3-1/2 4 Uncoated 14
    $19.84
  • A50310 ACT 0.1630 0.1630 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 10
    $49.57
  • A78791 ACT A 0.234 0.2265 1-1/2 6 6 Uncoated Available to Order*
    $29.31
  • A52908 ACT 0.4365 O/U 0.4365 0.373 1-3/4 7 6 Uncoated 7
    $56.66
  • A52616 ACT 0.4365 O/U 0.4365 0.373 1-3/4 7 6 Uncoated 23
    $36.24
  • A51667 ACT 0.115 0.112 7/8 3-1/2 4 Uncoated 12
    $19.84
  • A50311 ACT 0.1640 0.1640 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $49.57
  • A52909 ACT 7/16 0.4375 0.373 1-3/4 7 6 Uncoated 18
    $56.95
  • A52617 ACT 7/16 0.4375 0.373 1-3/4 7 6 Uncoated 38
    $36.24
  • A51668 ACT 0.1155 0.112 7/8 3-1/2 4 Uncoated 14
    $19.84
  • A50312 ACT 0.1650 0.1650 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 12
    $46.02
  • A52910 ACT 0.4385 O/U 0.4385 0.373 1-3/4 7 6 Uncoated 20
    $56.66
  • A52618 ACT 0.4385 O/U 0.4385 0.373 1-3/4 7 6 Uncoated 23
    $36.24
  • A51669 ACT 0.1165 0.112 7/8 3-1/2 4 Uncoated 11
    $19.84
  • A50313 ACT #19 0.1660 0.1660 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 18
    $46.02
  • A78792 ACT 6.0mm 0.2362 0.2265 1-1/2 6 6 Uncoated Available to Order*
    $29.65
  • A52911 ACT 11.5mm 0.4528 0.373 1-3/4 7 6 Uncoated 39
    $65.20
  • A52619 ACT 11.5mm 0.4528 0.373 1-3/4 7 6 Uncoated 13
    $41.52
  • A51670 ACT 0.117 0.112 7/8 3-1/2 4 Uncoated 17
    $19.84
  • A50314 ACT 0.1670 0.1670 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 23
    $49.57
  • A52912 ACT 29/64 0.4531 0.373 1-3/4 7 6 Uncoated 13
    $64.98
  • A52620 ACT 29/64 0.4531 0.373 1-3/4 7 6 Uncoated 20
    $41.52
  • A51671 ACT 0.1175 0.112 7/8 3-1/2 4 Uncoated 48
    $19.84
  • A50315 ACT 0.1680 0.1680 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 15
    $49.57
  • A78710 ACT B 0.238 0.2329 1-1/2 6 6 Uncoated Available to Order*
    $29.65
  • A52913 ACT 15/32 0.4688 0.373 1-3/4 7 6 Uncoated 19
    $65.20
  • A52621 ACT 15/32 0.4688 0.373 1-3/4 7 6 Uncoated 13
    $41.52
  • A51672 ACT 0.118 0.112 7/8 3-1/2 4 Uncoated 18
    $19.84
  • A50316 ACT 0.1690 0.1690 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 10
    $49.44
  • A52914 ACT 12.0mm 0.4724 0.4355 2 8 6 Uncoated 13
    $65.20
  • A52622 ACT 12.0mm 0.4724 0.4355 2 8 6 Uncoated 54
    $41.52
  • A51673 ACT 0.1185 0.112 7/8 3-1/2 4 Uncoated 31
    $19.84
  • A50317 ACT #18 0.1695 0.1695 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 22
    $46.02
  • A78711 ACT C 0.242 0.2329 1-1/2 6 6 Uncoated Available to Order*
    $29.47
  • A52915 ACT 31/64 0.4844 0.4355 2 8 6 Uncoated 13
    $64.98
  • A52623 ACT 31/64 0.4844 0.4355 2 8 6 Uncoated 16
    $41.52
  • A51674 ACT 0.119 0.112 7/8 3-1/2 4 Uncoated 58
    $19.84
  • A50318 ACT 0.1700 0.1700 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 17
    $49.57
  • A52916 ACT 12.5mm 0.4921 0.4355 2 8 6 Uncoated 14
    $64.98
  • A52624 ACT 12.5mm 0.4921 0.4355 2 8 6 Uncoated 8
    $41.52
  • A51675 ACT 0.1195 0.112 7/8 3-1/2 4 Uncoated 21
    $19.84
  • A50319 ACT 0.1710 0.1710 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $49.57
  • A78712 ACT D 0.246 0.2329 1-1/2 6 6 Uncoated Available to Order*
    $29.65
  • A52917 ACT 0.499 O/U 0.4990 0.4355 2 8 6 Uncoated 17
    $65.20
  • A52625 ACT 0.499 O/U 0.4990 0.4355 2 8 6 Uncoated 33
    $39.50
  • A51676 ACT 0.1205 0.119 7/8 3-1/2 4 Uncoated 20
    $19.84
  • A50320 ACT 11/64 0.1719 0.1719 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 16
    $44.58
  • A52918 ACT 1/2 0.5000 0.4355 2 8 6 Uncoated Available to Order*
    $65.20
  • A52626 ACT 1/2 0.5000 0.4355 2 8 6 Uncoated 100
    $39.50
  • A51677 ACT 0.121 0.119 7/8 3-1/2 4 Uncoated 14
    $19.84
  • A50321 ACT 0.1720 0.1720 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 10
    $49.57
  • A78713 ACT .249 O/U 0.249 0.2405 1-1/2 6 6 Uncoated Available to Order*
    $31.53
  • A52919 ACT 0.501 O/U 0.5010 0.4355 2 8 6 Uncoated 13
    $65.20
  • A52627 ACT 0.501 O/U 0.5010 0.4355 2 8 6 Uncoated 100
    $39.50
  • A51678 ACT 0.1215 0.119 7/8 3-1/2 4 Uncoated 12
    $19.84
  • A50322 ACT #17 0.1730 0.1730 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 21
    $46.02
  • A52920 ACT 17/32 0.5313 0.4355 2 8 6 Uncoated 32
    $73.27
  • A52628 ACT 13.0mm 0.5118 0.4355 2 8 6 Uncoated 30
    $51.67
  • A51679 ACT 0.122 0.119 7/8 3-1/2 4 Uncoated 16
    $19.84
  • A50323 ACT 0.1740 0.1740 7/8 2-3/4 1-1/2 0.0220 4 Uncoated 8
    $49.57
  • A52921 ACT 9/16 0.5625 0.4355 2 8 8 Uncoated 17
    $73.27
  • A52629 ACT 33/64 0.5156 0.4355 2 8 6 Uncoated 20
    $51.67
  • A51680 ACT 0.1225 0.119 7/8 3-1/2 4 Uncoated 24
    $19.84

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

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