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AVTWCCBTHSS Counterbore Cutter Taper Shank CBTSold0pcsHSS Counterbore Cutter Taper Shank CBT is a high-speed steel (HSS) form milling cutter, made in Japan. Specifications range from screw sizes M16~M30 & W5/8"~W1", pilot diameter 16.5~31.5mm, flute length 22~38mm, effective length 16~31mm, overall length 128.5~182mm, 4 flutes. Maximum workpiece hardness up to HRC30. Suitable for: P (structural/carbon/alloy steel, <HRC30); N (non-ferrous, aluminum, copper, brass, plastic). Main application: counterboring (recessing screw heads flush). In the same EIKO family: the straight-shank CB (M3~M20) and the long-shank CBLS; CBT has a Morse taper shank for the larger M16~M30 and W5/8"~W1" sizes and fits directly into the spindle taper. What shank does it use? Morse taper MT2 and MT3. Which one for smaller screws? Below M16 see the straight-shank CB.
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Cutting ToolsEnd MillForm Milling Cutter
HSS Counterbore Cutter Taper Shank CBT
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Counterbore

HSS Counterbore Cutter Taper Shank CBT

HSS Counterbore Cutter Taper Shank CBT is a high-speed steel (HSS) form milling cutter, made in Japan.

Specifications (9 items)

Part No. Screw size Dia. Major dia. Flute length Usable length Overall length Shank dia. Flutes
AVTWCCBT26220-M16 M16 16.5 26 22 16 130.5 MT2 4
AVTWCCBT26220-W5-8 W5/8" 16.5 26 22 16 128.5 MT2 4
AVTWCCBT28240 M18 18.5 28 24 18 134.5 MT2 4
AVTWCCBT29260 W3/4" 20 29 26 20 135.5 MT2 4
AVTWCCBT30260 M20 21 30 26 21 138.5 MT2 4
AVTWCCBT32280 M22 23 32 28 23 142.5 MT2 4
AVTWCCBT36320 M24 25 36 32 25 170 MT3 4
AVTWCCBT37320 W1" 26.5 37 32 26 169 MT3 4
AVTWCCBT45380 M30 31.5 45 38 31 182 MT3 4

Specification Range

Diameter 16.5~31.5mm
Large diameter 26~45mm
Flute length 22~38mm
Effective length 16~31mm
Overall length 128.5~182mm
Shank diameter MT2~MT3

Product Description

HSS Counterbore Cutter Taper Shank CBT is a high-speed steel (HSS) form milling cutter, made in Japan. Specifications range from screw sizes M16~M30 & W5/8"~W1", pilot diameter 16.5~31.5mm, flute length 22~38mm, effective length 16~31mm, overall length 128.5~182mm, 4 flutes. Maximum workpiece hardness up to HRC30. Suitable for: P (structural/carbon/alloy steel, <HRC30); N (non-ferrous, aluminum, copper, brass, plastic). Main application: counterboring (recessing screw heads flush). In the same EIKO family: the straight-shank CB (M3~M20) and the long-shank CBLS; CBT has a Morse taper shank for the larger M16~M30 and W5/8"~W1" sizes and fits directly into the spindle taper. What shank does it use? Morse taper MT2 and MT3. Which one for smaller screws? Below M16 see the straight-shank CB.

Workpiece Materials & Hardness

  • Steel (P)
  • Non-ferrous metals (N)

Max. workpiece hardness HRC30

Tags

  • Counterbore

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