Taps & Dies

Popular Special Taps (Metrics)

WESTport manufactures Popular Special Metric Taps for ISO metric threading applications. Available in standard popular sizes and custom configurations for production machining, repair, maintenance, and OEM manufacturing.

Why WESTport?

  • Custom-ground to your exact specs
  • All thread standards: UNC, Metric, NPT, ACME, API
  • HSS, Cobalt, Powder Metal, Carbide options
  • Made in USA — 30+ years of precision manufacturing
  • Same-day quoting on standard requests
  • Matched tap & die sets available
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Call for Quote

To order, contact us with the part number and your desired quantity.

Size
Style
Chamfer

Part #:83144

Features

  • Popular ISO metric thread sizes
  • Precision-ground thread geometry
  • High-Speed Steel (HSS), cobalt, and powdered metal options
  • Standard and modified metric pitches
  • Excellent dimensional accuracy
  • Long tool life
  • Premium wear-resistant coatings available
  • CNC and manual machining applications
  • Custom metric taps available upon request
More Details View full details

Available Sizes & Part Numbers

SizeStyleChamferSKUPrice
M16X2 D7 4FL 6 OAL TAP Taper 36993 Call for Quote
M16X2 D7 4FL 6 OAL TAP Plug 36994 Call for Quote
M16X2 D7 4FL 6 OAL TAP Bottom 36995 Call for Quote
M16X2 6H D7 3FL SPPT Default 83161 Call for Quote
M16X2 D7 3FL 6 OAL SPPT Default 36996 Call for Quote
M18X1 6H D5 4FL TAP Taper 83390 Call for Quote
M18X1 6H D5 4FL TAP Plug 83391 Call for Quote
M18X1 6H D5 4FL TAP Bottom 83392 Call for Quote
M18X1.5 6H D6 3FL SPPT Default 83162 Call for Quote
M18X1.5 6H D6 4FL LH TAP Taper 84076 Call for Quote
M18X1.5 6H D6 4FL LH TAP Plug 84077 Call for Quote
M18X1.5 6H D6 4FL LH TAP Bottom 84078 Call for Quote
M18X1.5 6H D6 4FL TAP Taper 83072 Call for Quote
M18X1.5 6H D6 4FL TAP Plug 83073 Call for Quote
M18X1.5 6H D6 4FL TAP Bottom 83074 Call for Quote
M18X2.5 6H D7 4FL LH TAP Taper 84072 Call for Quote
M18X2.5 6H D7 4FL LH TAP Plug 84073 Call for Quote
M18X2.5 6H D7 4FL LH TAP Bottom 84074 Call for Quote
M18X2.5 6H D7 4FL TAP Taper 83076 Call for Quote
M18X2.5 6H D7 4FL TAP Plug 83077 Call for Quote
M18X2.5 6H D7 4FL TAP Bottom 83078 Call for Quote
M18X2.5 4FL TAP Taper 83506 Call for Quote
M18X2.5 4FL TAP Plug 83507 Call for Quote
M18X2.5 4FL TAP Bottom 83508 Call for Quote
M18X2.5 6H D7 3FL SPPT Default 83163 Call for Quote
M20X1 6H D6 4FL TAP Taper 83400 Call for Quote
M20X1 6H D6 4FL TAP Plug 83401 Call for Quote
M20X1 6H D6 4FL TAP Bottom 83402 Call for Quote
M20X1.5 +.005 4FL TAP Taper 36857 Call for Quote
M20X1.5 +.005 4FL TAP Plug 36858 Call for Quote
M20X1.5 +.005 4FL TAP Bottom 36859 Call for Quote
M20X1.5 6H D6 3FL SPPT Default 83164 Call for Quote
M20X1.5 6H D6 4FL LH TAP Taper 84084 Call for Quote
M20X1.5 6H D6 4FL LH TAP Plug 84085 Call for Quote
M20X1.5 6H D6 4FL LH TAP Bottom 84086 Call for Quote
M20X1.5 6H D6 4FL TAP Taper 83080 Call for Quote
M20X1.5 6H D6 4FL TAP Plug 83081 Call for Quote
M20X1.5 6H D6 4FL TAP Bottom 83082 Call for Quote
M20X2.5 +.005 4FL TAP Taper 36854 Call for Quote
M20X2.5 +.005 4FL TAP Plug 36855 Call for Quote
M20X2.5 +.005 4FL TAP Bottom 36856 Call for Quote
M20X2.5 6H D6 3FL SPPT Default 83165 Call for Quote
M20X2.5 6H D7 4FL LH TAP Taper 84080 Call for Quote
M20X2.5 6H D7 4FL LH TAP Plug 84081 Call for Quote
M20X2.5 6H D7 4FL LH TAP Bottom 84082 Call for Quote
M20X2.5 6H D7 4FL TAP Taper 83084 Call for Quote
M20X2.5 6H D7 4FL TAP Plug 83085 Call for Quote
M20X2.5 6H D7 4FL TAP Bottom 83086 Call for Quote
M20X2.5 D7 4FL 6 OAL TAP Taper 36888 Call for Quote
M20X2.5 D7 4FL 6 OAL TAP Plug 36889 Call for Quote
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Product Details

WESTport's Popular Special Metric Taps provide manufacturers with quick access to many of the most commonly requested metric thread sizes while maintaining the flexibility to satisfy specialized production requirements. Designed for machine shops, OEMs, maintenance departments, tool rooms, and production facilities, these taps bridge the gap between standard catalog tooling and fully custom thread cutting solutions. Whether you're replacing an existing tool, supporting production, or sourcing an uncommon metric size, WESTport offers precision-manufactured Metric Special Taps built for consistent performance and long service life.

Manufactured from premium High-Speed Steel (HSS), cobalt, powdered metal, and other high-performance tool materials, every WESTport Metric Special Tap is precision ground to produce accurate ISO metric internal threads with excellent surface finish and dimensional consistency. Available in a wide range of popular metric diameters and pitches, these taps are suitable for machining carbon steel, alloy steel, stainless steel, aluminum, brass, bronze, cast iron, engineering plastics, and many specialty materials. Optional premium coatings are available to reduce friction, improve wear resistance, and extend tool life in demanding production environments.

Metric threads are used throughout virtually every manufacturing industry, making dependable tooling essential for maintaining production efficiency and product quality. WESTport understands that downtime caused by unavailable or poorly performing taps can be costly. Our Popular Special Metric Taps are designed to provide customers with readily available solutions for many frequently requested metric thread sizes while also offering the capability to manufacture modified dimensions, special thread lengths, custom chamfers, left-hand versions, and other application-specific configurations when required.

Whether you're producing automotive components, aerospace hardware, hydraulic equipment, medical devices, industrial machinery, or precision mechanical assemblies, WESTport works closely with customers to recommend the proper tap for the material, machining process, and thread specification. Since 1989, WESTport has built its reputation on supplying precision quality assurance products, custom thread tooling, calibration services, and technical support to manufacturers throughout North America and around the world.

Benefits

  • Covers many commonly requested metric thread sizes
  • Produces accurate, repeatable internal threads
  • Reduces production downtime
  • Excellent machining performance across a wide range of materials
  • Fast solution for frequently used metric applications
  • Custom modifications available when needed
  • Reliable performance for prototype and production machining

Typical Applications

  • Automotive manufacturing
  • Aerospace components
  • Medical device manufacturing
  • Industrial machinery
  • Hydraulic equipment
  • Electronics
  • Tool and die manufacturing
  • Maintenance and repair operations
  • OEM production
  • Precision machine shops

Technical Information

WESTport Popular Special Metric Taps are manufactured to produce precision ISO metric internal threads in a broad range of commonly requested sizes and pitches. When an application requires a modified diameter, special pitch, unique chamfer, extended thread length, or other engineering change, WESTport can manufacture a custom version built to your specifications. This combination of readily available popular sizes and custom manufacturing capabilities allows customers to obtain tooling that matches both standard production requirements and specialized applications.

Why Choose WESTport?

Since 1989, WESTport has supplied manufacturers worldwide with precision thread gages, metrology equipment, hardness testing products, calibration services, and custom threading solutions. Our experienced team understands the demands of modern manufacturing and provides customers with precision tooling engineered for accuracy, durability, and dependable performance. Whether you need a popular metric size or a custom-engineered solution, WESTport delivers the technical expertise, responsive customer service, and quality manufacturers have trusted for more than 35 years.

Have a Custom or Special Application?

Need a tap or die ground to a non-standard spec, print, or unique thread form? Submit a custom quote request and our engineering team will review it.

Request a Custom Quote