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Milwaukee High Carbon Steel Metric Straight Plug Tap M12-1.75 mm

Meet the Milwaukee High Carbon Steel Metric Straight Plug Tap M12-1.75 mm — a purpose-built tool for precise internal threading in metalworking projects. Built for demanding jobs,…

Milwaukee MPN 49-57-5158
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About Product Overview

Meet the Milwaukee High Carbon Steel Metric Straight Plug Tap M12-1.75 mm — a purpose-built tool for precise internal threading in metalworking projects. Built for demanding jobs, this straight plug tap combines rugged durability with a smooth black oxide finish that resists wear and corrosion. At 3.25 inches in length, it delivers reliable reach and rigidity for tapped holes in confined spaces.

  • Material you can trust: High carbon steel provides long tool life under heavy metalworking use.
  • Metric precision: Tap size M12-1.75 ensures compatibility with common metric fasteners and applications.
  • Straight plug design: Delivers clean, straight threads and easy alignment, reducing the chance of cross-threading.
  • Durable finish: Black oxide finish offers improved wear resistance and smoother cutting action.
  • Compact and accessible: 3.25" length is ideal for deep pockets and tight work areas.
  • Single-piece packaging: Carded, with one tap per package for control and portability.
  • Drill bit not included: Designed to be paired with your chosen drill and prep process for precise hole sizing.

Why this tap stands out for real-world metalworking tasks: you’ll reach for the Milwaukee plug tap when you’re repairing damaged threads or creating new ones in steel, cast iron, or similar alloys. Its hardened high carbon steel construction stands up to repeated tapping, while the M12-1.75 thread form provides robust, durable engagement with standard metric fasteners. The black oxide finish minimizes galling and makes chip flow smoother, helping you complete jobs faster with less heat buildup.

Ideal use scenarios: fabricating or repairing internal threads in machine housings, frames, brackets, metal enclosures, and other components that require precise M12-1.75 threads. It’s a reliable choice for shop projects, automotive maintenance, and industrial fabrication where consistent thread quality matters.

How to use effectively:

  • Mark the hole location and drill an appropriately sized pilot hole for the M12-1.75 thread specification (follow material guidelines and standard tapping charts).
  • Apply a suitable cutting fluid or tapping oil to reduce friction and extend tool life.
  • Insert the Milwaukee plug tap straight into the hole and turn clockwise with steady, even pressure to begin cutting the threads.
  • Advance gradually, reversing direction periodically to break and clear chips for a clean, accurate thread.
  • Continue until the full thread depth is achieved, then test with a compatible M12-1.75 bolt or insert to verify fit and function.

Care and maintenance tip: after use, clean away chips, wipe down with a light coating of oil, and store in a dry place to preserve the black oxide surface. Regular maintenance helps preserve edge integrity and prolongs tap life for future projects.

With the Milwaukee High Carbon Steel Metric Straight Plug Tap M12-1.75 mm, you’re choosing a tool built for reliability, precision, and lasting performance in professional metalworking. It’s the right choice for makers who demand consistent results and straightforward, repeatable tapping quality in metric threads.

The Details Specifications

Brand Milwaukee
SKU 2054389
UPC 045242778515
Unit 0
Case Pack Quantity 3 per case
Retail Unit Quantity 1
Unit of Measure 0 0
Dimensions (L × W × H) 0 × 2 × 6
Weight 0 lbs
Cubic Feet 0.00286 ft³
Country of Origin CHINA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab

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