49-57-5292 3/8-18 Npt Straight Flute Plug Tap, 4-flute Hcs

The Milwaukee 49-57-5292 is a 3/8-18 NPT straight flute plug tap designed for creating and repairing threads in a wide range of metals including brass, aluminum, and mild steel. This high-carbon steel (HCS) tool combines a tapered entry design with a four-flute configuration to deliver clean, precise threads while minimizing cross-threading and reducing the risk of tool breakage during use.

The square shank fits any standard tap handle or wrench, making it compatible with existing shop tools and field kits. Its black-oxide coating provides corrosion resistance in demanding environments, whether on the shop floor or during field work. When used with cutting fluid, the tap achieves smoother operation, superior chip evacuation, and extended service life, making it a reliable choice for professional mechanics, fabricators, and serious DIY work.

Features and Benefits

• Four-Flute Straight Design: Maximizes chip removal and produces superior surface finish for high-quality threads.
• Tapered Entry: Gradual thread engagement reduces torque spikes and prevents tool breakage during startup.
• Black-Oxide Coating: Corrosion-resistant finish protects the tool in harsh shop and field conditions.
• Square Shank Compatibility: Fits all conventional tap handles and wrenches for versatile application.
• Laser-Etched Sizing Marks: Clear identification eliminates guesswork during setup and reduces setup errors.

Specifications

• Brand: Milwaukee
• Model: 49-57-5292
• Size: 3/8-18 NPT
• Flute Design: 4-flute straight flute
• Material: High-carbon steel (HCS)
• Shank Type: Square shank
• Finish: Black-oxide coating