Value Collection 20605 Standard Pipe Tap 1-11/2 Nps

Product Description

The VALUE COLLECTION 20605 is a standard pipe tap designed to cut internal NPS (National Pipe Straight) threads in metal workpieces. It produces a 1-11/2 thread size with a 1-3/4 inch thread length and features 5 flutes for efficient chip evacuation during cutting. The tap body is machined from high-speed steel for hardness and heat resistance under sustained cutting loads. An oxide gold finish provides a base level of corrosion resistance and reduces friction at the cutting edge. This tap is a hand or machine tool used by machinists, pipefitters, and maintenance technicians to prepare threaded pipe connections in ferrous and non-ferrous materials.

This pipe tap is suited for threading operations on pipe fittings, flanges, manifolds, and other components that require NPS internal threads. It is used in plumbing, HVAC, and industrial piping applications where straight pipe threads are specified. The 5-flute design supports use in both through-hole and blind-hole applications at standard feed rates. The 1.1250 inch shank diameter and 0.8430 inch square drive size are compatible with standard tap wrenches and machine tap holders of the appropriate size.

Key Features

• 1-11/2 NPS thread size for straight pipe thread applications
• 1-3/4 inch thread length for adequate thread engagement depth
• 5-flute geometry promotes chip clearance and consistent thread form
• High-speed steel construction withstands heat generated during cutting
• Oxide gold finish reduces surface friction and provides light corrosion resistance
• Regular hook angle for general-purpose threading in a range of materials

Compatibility

Designed for use in standard NPS straight pipe thread applications. Compatible with tap wrenches and machine holders accepting a 1.1250 inch shank diameter and a 0.8430 inch square drive.

Installation Notes

This tap is installed and operated by machinists or pipefitters using a calibrated tap wrench or tapping machine set to the correct speed for the workpiece material. Always secure the workpiece firmly before beginning the threading operation and use an appropriate cutting fluid to extend tap life and improve thread finish. Back the tap out periodically to clear chips and reduce the risk of tap breakage. Inspect the tap for wear or chipping before each use and replace if cutting edges are degraded.