49-57-5136 M6x1 Straight Flute Plug Tap, Hardened Carbon Steel

The Milwaukee 49-57-5136 is a hardened carbon steel plug tap designed for precision internal threading in through-hole applications. With its straight-flute cutting edge and square shank design, this tap delivers clean, accurate threads in a single smooth motion while reducing chip buildup. It works effectively on brass, aluminum, mild steel, and other common alloys, making it an essential tool for metalworking, machining, and assembly work where repeatable, high-quality threads are critical.

The black-oxide coating provides corrosion resistance and improved chip flow, protecting the tool in demanding shop environments and extending its working life. The laser-etched size markings ensure instant identification of the M6x1 pitch, eliminating guesswork during setup. Whether you're running production threading operations or completing precision DIY projects, this plug tap streamlines your workflow and helps keep assemblies tight and secure.

Features and Benefits

• Hardened Carbon Steel Construction: Provides superior strength and wear resistance for demanding, repetitive threading applications.
• Black-Oxide Finish: Resists corrosion and improves chip flow for cleaner, more efficient cutting in harsh shop conditions.
• Laser-Etched Size Markings: Long-lasting, easy-to-read identification of the M6x1 pitch specification.
• Plug Style Chamfer: Specifically designed for clean entry and reliable performance in through-hole threading.
• Straight Flute Cutting Edge: Delivers smooth chip evacuation and consistent thread geometry for professional-quality results.
• Square Shank: Compatible with all standard tap handles and wrenches for quick, secure tool changes.

Specifications

• Brand: Milwaukee
• Model: 49-57-5136
• Thread Size: M6x1 (metric)
• Tap Style: Straight Flute Plug Tap
• Material: Hardened Carbon Steel
• Finish: Black Oxide
• Shank Type: Square
• Dimensions: 4.75 x 1.87 x 0.28 inches
• Weight: 0.03 lb