49-57-5161 M12 × 1.25 Metric Straight Plug Tap, High-carbon Steel

The Milwaukee 49-57-5161 is a metric straight plug tap designed for precision internal threading in metalworking projects. This single-piece tool cuts clean, accurate M12 × 1.25 threads in steel, stainless steel, and other hard materials. The straight-cut design enables smooth entry into workpieces and reduces the risk of tap breakage, making it reliable for both professional shops and serious DIY metalworking.

A metric tap eliminates guesswork when matching drill sizes and thread specifications to fasteners. The plug-style chamfer is ideal for through-hole applications, while the straight flute design suits general-purpose threading tasks. The sharp flutes cut efficiently, minimizing torque and extending tool life so you can complete jobs faster and with greater confidence.

Features and Benefits

• High-Carbon Steel Construction: Offers superior strength and wear resistance for demanding threading applications.
• Black-Oxide Coating: Resists corrosion, improves chip flow, and reduces friction during cutting.
• Laser-Etched Markings: Specifications remain legible and long-lasting through repeated use.
• Plug-Style Chamfer: Designed for through-hole applications, ensuring proper thread entry and alignment.
• Straight Flute Design: Best for general-purpose threading, cutting efficiently across a range of materials.

Specifications

• Brand: Milwaukee
• Model: 49-57-5161
• Thread Size: M12 × 1.25 metric
• Tap Type: Straight plug tap
• Material: High-carbon steel
• Finish: Black oxide
• Style: Single-piece, straight flute
• Dimensions: 5.75 × 1.87 × 0.47 inches
• Weight: 0.08 pounds