Spiral Flute CNC Style

Spiral Flute CNC Style

Spiral Fluted Semi-Bottoming - ANSI Threads
Spiral Fluted Semi-Bottoming - ANSI Threads
Spiral Fluted Semi-Bottoming - Metric Threads
Spiral Fluted Semi-Bottoming - Metric Threads

Spiral fluted semi-bottoming taps are cutting tools designed for creating threads in holes that are not blind. These taps are equipped with a unique spiral fluted design that provides several advantages over traditional straight fluted taps. The spiral fluted design allows for the efficient evacuation of chips, reduces heat buildup, and provides a smoother and more accurate tapping operation.

One of the key benefits of spiral fluted semi-bottoming taps is their ability to prevent the tap from bottoming out in the hole, which can cause damage to both the tap and the workpiece. These taps have a shortened thread length, which allows for the creation of threads close to the bottom of the hole, without the risk of the tap going too far. This makes them ideal for applications where a partial thread is required, or where a through-hole must be tapped to a specific depth.

  • Compare SKU Vendor Size Shank Diameter Overall Length H Limit D Limit NC / NF Square Size Square Length Thread Length Number of Lube Grooves Number of Flutes Style Material Coating In Stock Price Quantity
    A55232 ACT M3 X 0.5 0.141 1-15/16 D3 2 Spiral Fluted Powdered Metal Uncoated 100
    $30.68
  • A55130 ACT 4-40 0.141 1-7/8 H2 2 Spiral Fluted Powdered Metal Uncoated 25
    $27.01
  • A55239 ACT M3 X 0.5 0.141 1-15/16 D3 2 Spiral Fluted Powdered Metal STEAM OXIDE 50
    $32.82
  • A55168 ACT 4-40 0.141 1-7/8 H2 2 Spiral Fluted Powdered Metal STEAM OXIDE 9
    $28.87
  • A55246 ACT M3 X 0.5 0.141 1-15/16 D3 2 Spiral Fluted Powdered Metal ALTiN 22
    $42.10
  • A55149 ACT 4-40 0.141 1-7/8 H2 2 Spiral Fluted Powdered Metal ALTiN 15
    $38.68
  • A55233 ACT M4 X 0.7 0.168 2-1/8 D4 3 Spiral Fluted Powdered Metal Uncoated 100
    $30.68
  • A55131 ACT 6-32 0.141 2 H3 2 Spiral Fluted Powdered Metal Uncoated 100
    $27.01
  • A55240 ACT M4 X 0.7 0.168 2-1/8 D4 3 Spiral Fluted Powdered Metal STEAM OXIDE 36
    $32.82
  • A55169 ACT 6-32 0.141 2 H3 2 Spiral Fluted Powdered Metal STEAM OXIDE 87
    $28.87
  • A55247 ACT M4 X 0.7 0.168 2-1/8 D4 3 Spiral Fluted Powdered Metal ALTiN 14
    $42.10
  • A55150 ACT 6-32 0.141 2 H3 2 Spiral Fluted Powdered Metal ALTiN 20
    $38.68
  • A55234 ACT M5 X 0.8 0.194 2-3/8 D4 3 Spiral Fluted Powdered Metal Uncoated 100
    $30.68
  • A55132 ACT 8-32 0.168 2-1/8 H3 3 Spiral Fluted Powdered Metal Uncoated 100
    $27.01
  • A55241 ACT M5 X 0.8 0.194 2-3/8 D4 3 Spiral Fluted Powdered Metal STEAM OXIDE 42
    $32.82
  • A55170 ACT 8-32 0.168 2-1/8 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 64
    $28.87
  • A55248 ACT M5 X 0.8 0.194 2-3/8 D4 3 Spiral Fluted Powdered Metal ALTiN 18
    $42.10
  • A55151 ACT 8-32 0.168 2-1/8 H3 3 Spiral Fluted Powdered Metal ALTiN 8
    $38.68
  • A55235 ACT M6 X 1.0 0.255 2-1/2 D5 3 Spiral Fluted Powdered Metal Uncoated 100
    $31.42
  • A55133 ACT 10-24 0.194 2-3/8 H3 3 Spiral Fluted Powdered Metal Uncoated 69
    $27.01
  • A55242 ACT M6 X 1.0 0.255 2-1/2 D5 3 Spiral Fluted Powdered Metal STEAM OXIDE 17
    $33.81
  • A55171 ACT 10-24 0.194 2-3/8 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 4
    $29.03
  • A55249 ACT M6 X 1.0 0.255 2-1/2 D5 3 Spiral Fluted Powdered Metal ALTiN 8
    $43.63
  • A55152 ACT 10-24 0.194 2-3/8 H3 3 Spiral Fluted Powdered Metal ALTiN Available to Order*
    $38.68
  • A55236 ACT M8 X 1.25 0.318 2-23/32 D5 3 Spiral Fluted Powdered Metal Uncoated 64
    $34.68
  • A55134 ACT 10-32 0.194 2-3/8 H3 3 Spiral Fluted Powdered Metal Uncoated 100
    $27.01
  • A55243 ACT M8 X 1.25 0.318 2-23/32 D5 3 Spiral Fluted Powdered Metal STEAM OXIDE 21
    $37.15
  • A55172 ACT 10-32 0.194 2-3/8 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 31
    $29.03
  • A55250 ACT M8 X 1.25 0.318 2-23/32 D5 3 Spiral Fluted Powdered Metal ALTiN 19
    $48.33
  • A55153 ACT 10-32 0.194 2-3/8 H3 3 Spiral Fluted Powdered Metal ALTiN 16
    $38.68
  • A55237 ACT M10 X 1.5 0.381 2-15/16 D6 3 Spiral Fluted Powdered Metal Uncoated 100
    $40.82
  • A55135 ACT 1/4-20 0.255 2-1/2 H3 3 Spiral Fluted Powdered Metal Uncoated 16
    $27.71
  • A55244 ACT M10 X 1.5 0.381 2-15/16 D6 3 Spiral Fluted Powdered Metal STEAM OXIDE 26
    $43.91
  • A55173 ACT 1/4-20 0.255 2-1/2 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 58
    $29.77
  • A55251 ACT M10 X 1.5 0.381 2-15/16 D6 3 Spiral Fluted Powdered Metal ALTiN 16
    $50.72
  • A55154 ACT 1/4-20 0.255 2-1/2 H3 3 Spiral Fluted Powdered Metal ALTiN 23
    $39.87
  • A55238 ACT M12 X 1.75 0.367 3-3/8 D6 3 Spiral Fluted Powdered Metal Uncoated 34
    $61.23
  • A55136 ACT 1/4-28 0.255 2-1/2 H3 3 Spiral Fluted Powdered Metal Uncoated 83
    $27.71
  • A55245 ACT M12 X 1.75 0.367 3-3/8 D6 3 Spiral Fluted Powdered Metal STEAM OXIDE 18
    $48.12
  • A55174 ACT 1/4-28 0.255 2-1/2 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 63
    $29.77
  • A55252 ACT M12 X 1.75 0.367 3-3/8 D6 3 Spiral Fluted Powdered Metal ALTiN 11
    $85.72
  • A55155 ACT 1/4-28 0.255 2-1/2 H3 3 Spiral Fluted Powdered Metal ALTiN 11
    $39.87
  • A57667 ACT M14 X 2.0 0.429 3-19/32 D7 3 Spiral Fluted Powdered Metal Uncoated 19
    $86.79
  • A55137 ACT 5/16-18 0.318 2-23/32 H3 3 Spiral Fluted Powdered Metal Uncoated 67
    $30.47
  • A55175 ACT 5/16-18 0.318 2-23/32 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 58
    $32.78
  • A57671 ACT M14 X 2.0 0.429 3-19/32 D7 3 Spiral Fluted Powdered Metal ALTiN 9
    $97.43
  • A55156 ACT 5/16-18 0.318 2-23/32 H3 3 Spiral Fluted Powdered Metal ALTiN 16
    $43.63
  • A57668 ACT M16 X 2.0 0.48 3-13/16 D7 3 Spiral Fluted Powdered Metal Uncoated 16
    $101.51
  • A55138 ACT 5/16-24 0.318 2-23/32 H3 3 Spiral Fluted Powdered Metal Uncoated 43
    $22.68
  • A57670 ACT M16 X 2.0 0.48 3-13/16 D7 3 Spiral Fluted Powdered Metal STEAM OXIDE 12
    $105.31
  • A55176 ACT 5/16-24 0.318 2-23/32 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 80
    $32.62
  • A57672 ACT M16 X 2.0 0.48 3-13/16 D7 3 Spiral Fluted Powdered Metal ALTiN 12
    $96.07
  • A55157 ACT 5/16-24 0.318 2-23/32 H3 3 Spiral Fluted Powdered Metal ALTiN 10
    $38.88
  • A55139 ACT 3/8-16 0.381 2-15/16 H3 3 Spiral Fluted Powdered Metal Uncoated Available to Order*
    $36.00
  • A55177 ACT 3/8-16 0.381 2-15/16 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 35
    $38.68
  • A55158 ACT 3/8-16 0.381 2-15/16 H3 3 Spiral Fluted Powdered Metal ALTiN Available to Order*
    $51.75
  • A55140 ACT 3/8-24 0.381 2-15/16 H3 3 Spiral Fluted Powdered Metal Uncoated 44
    $36.00
  • A55178 ACT 3/8-24 0.381 2-15/16 H3 3 Spiral Fluted Powdered Metal STEAM OXIDE 64
    $38.60
  • A55159 ACT 3/8-24 0.381 2-15/16 H3 3 Spiral Fluted Powdered Metal ALTiN Available to Order*
    $38.76
  • A55141 ACT 7/16-14 0.323 3-5/32 H3 4 Spiral Fluted Powdered Metal Uncoated 37
    $45.73
  • A55179 ACT 7/16-14 0.323 3-5/32 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 64
    $48.95
  • A55160 ACT 7/16-14 0.323 3-5/32 H3 4 Spiral Fluted Powdered Metal ALTiN 4
    $54.84
  • A55142 ACT 7/16-20 0.323 3-5/32 H3 4 Spiral Fluted Powdered Metal Uncoated 22
    $34.27
  • A55180 ACT 7/16-20 0.323 3-5/32 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 23
    $48.86
  • A55161 ACT 7/16-20 0.323 3-5/32 H3 4 Spiral Fluted Powdered Metal ALTiN 1
    $41.03
  • A55143 ACT 1/2-13 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal Uncoated 39
    $53.89
  • A55181 ACT 1/2-13 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 15
    $58.02
  • A55162 ACT 1/2-13 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal ALTiN 13
    $77.64
  • A55144 ACT 1/2-20 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal Uncoated 47
    $53.89
  • A55182 ACT 1/2-20 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 18
    $58.02
  • A55163 ACT 1/2-20 0.367 3-3/8 H3 4 Spiral Fluted Powdered Metal ALTiN 15
    $77.64
  • A55145 ACT 5/8-11 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal Uncoated 20
    $77.23
  • A55183 ACT 5/8-11 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 19
    $110.83
  • A55164 ACT 5/8-11 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal ALTiN 5
    $115.49
  • A55146 ACT 5/8-18 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal Uncoated 55
    $77.23
  • A55184 ACT 5/8-18 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE Available to Order*
    $83.08
  • A55165 ACT 5/8-18 0.48 3-13/16 H3 4 Spiral Fluted Powdered Metal ALTiN 23
    $115.49
  • A55147 ACT 3/4-10 0.59 4-1/4 H3 4 Spiral Fluted Powdered Metal Uncoated 89
    $121.10
  • A55185 ACT 3/4-10 0.59 4-1/4 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 19
    $129.55
  • A55148 ACT 3/4-16 0.59 4-1/4 H3 4 Spiral Fluted Powdered Metal Uncoated 29
    $90.22
  • A55186 ACT 3/4-16 0.59 4-1/4 H3 4 Spiral Fluted Powdered Metal STEAM OXIDE 16
    $129.55
  • A55167 ACT 3/4-16 0.59 4-1/4 H3 4 Spiral Fluted Powdered Metal ALTiN 3
    $135.94

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

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