Value Collection 00382325 Combo Drill Tap 1/2-14 Nptf Hss

Product Description

The VALUE COLLECTION 00382325 is a combination drill tap designed to drill and tap a 1/2-14 NPTF thread in a single operation. Manufactured from high-speed steel (HSS), it delivers the hardness and heat resistance required for threading pipe-fitting ports in steel, cast iron, and similar ferrous materials. The tool features 4 flutes for efficient chip evacuation and a 45/64-inch drill diameter with a 1-3/8-inch thread length. At 4-3/8 inches overall length, it is sized for standard drill press and hand-drilling applications. This type of tooling is commonly used by plumbers, pipefitters, HVAC technicians, and machinists who need to create NPTF-compliant threaded ports in manifolds, fittings, and equipment housings.

This combination drill tap is suited for creating 1/2-14 NPTF tapered pipe thread ports in a range of materials encountered in plumbing, HVAC, and general mechanical work. NPTF threads are a dryseal standard, meaning the thread form itself creates a pressure-tight seal without a separate sealant when properly cut and mated. This makes the 00382325 appropriate for hydraulic, pneumatic, and fluid-handling applications where thread integrity is critical. It is packaged as a single unit.

Key Features

• Drills and taps a 1/2-14 NPTF port in one pass, reducing setup time
• High-speed steel construction for durability in ferrous and non-ferrous materials
• 4-flute design promotes chip evacuation and cleaner thread formation
• NPTF thread standard produces dryseal pipe threads without relying solely on thread sealant
• 45/64-inch drill diameter matched to 1/2-14 NPTF tap geometry
• 1-3/8-inch thread length suitable for standard pipe wall thicknesses

Compatibility

Designed for use in applications requiring 1/2-14 NPTF tapered pipe thread ports. Suitable for use in standard drill presses, CNC machines, or hand-held drilling equipment capable of accepting the tool shank and providing appropriate feed rates for combination drill-tap tooling.

Installation Notes

Combination drill taps require proper cutting fluid or tapping oil to reduce heat buildup and extend tool life, particularly in steel and cast iron. The workpiece must be securely fixtured before operation to prevent walking and thread misalignment. Use appropriate spindle speeds for the material being tapped — speeds that are too high will shorten HSS tool life significantly. Always clear chips frequently when tapping deeper ports to prevent tool breakage.