Milwaukee Tool 49-57-5294 Straight Flute Tap 3/4-14 Npt

Product Description

The MILWAUKEE TOOL 49-57-5294 is a straight flute tap designed for cutting 3/4-14 NPT internal pipe threads in metal workpieces. It features a taper chamfer and four flutes, making it suited for through-hole and open-end tapping applications where chips can evacuate freely. The high-carbon steel construction provides the hardness needed for threading ferrous and non-ferrous materials, while the black oxide finish reduces friction and offers light corrosion resistance during storage and use. With a 2B class of fit, the tap produces threads that meet standard tolerance requirements for general pipe fitting applications. Plumbers, pipefitters, and machinists use this tap when threading pipe connections by hand or with a tap wrench.

This tap is appropriate for creating NPT tapered pipe threads in a variety of materials including mild steel, cast iron, aluminum, and similar workable metals. It is commonly used in plumbing rough-in work, industrial pipe assembly, and maintenance applications where a standard 3/4-14 NPT female thread is required. The right-hand thread direction is consistent with standard NPT fittings used across residential and commercial piping systems. The overall length of 3.5 inches allows for use with standard tap handles and wrench sets without interference.

Key Features

• 3/4-14 NPT thread size for standard tapered pipe thread applications
• 4-flute straight flute geometry for efficient chip clearance in through-hole tapping
• Taper chamfer eases thread starting and reduces initial cutting load
• High-carbon steel construction delivers hardness for threading common metals
• Black oxide finish reduces friction and provides light corrosion resistance
• 2B class of fit meets standard tolerance requirements for general pipe fittings

Compatibility

Designed as a standard replacement or utility tap for any application requiring a 3/4-14 NPT internal thread. Compatible with standard tap wrenches and holders sized for the included shank dimensions.

Installation Notes

This tap is installed by a plumber, pipefitter, or machinist using a tap wrench or appropriate tapping tool. Always secure the workpiece firmly before tapping and use a suitable cutting fluid to extend tap life and improve thread quality. Start the tap perpendicular to the work surface to avoid cross-threading. Do not force the tap if resistance increases sharply, as this can cause breakage in harder materials.