Regal Cutting Tools 008532AS 1/2-20 Unf Plug Hand Tap Hss

Product Description

The REGAL CUTTING TOOLS 008532AS is a straight-flute hand tap designed for cutting 1/2-20 UNF right-hand internal threads. Built from high speed steel with a bright uncoated finish, this plug chamfer tap is suited for general-purpose tapping in a wide range of materials. The H3 thread limit and 3B class of fit make it appropriate for standard tolerance threaded holes requiring clean, accurate threads. With three flutes and a plug chamfer, it is well-suited for threading through-holes and blind holes with adequate chip clearance. The overall length is 3.375 inches with a thread length of 1.656 inches. Machinists, tool and die makers, and maintenance technicians are the primary users of this tap.

This tap is used in manual tapping operations with a tap wrench or tapping fixture. It is appropriate for threading holes in ferrous and non-ferrous metals, plastics, and similar materials in both production and maintenance-repair settings. The 1/2-20 UNF thread form is common in automotive, aerospace, and general mechanical assemblies where fine-thread fasteners are specified. The straight-flute design suits general materials where chips can be managed with appropriate cutting fluid and technique.

Key Features

• 1/2-20 UNF thread form, right-hand, plug chamfer for versatile through-hole and blind-hole tapping
• High speed steel construction for durability across a broad range of workpiece materials
• Bright uncoated finish - suitable for use with standard cutting oils and fluids
• H3 thread limit with 3B class of fit for standard tolerance threaded holes
• 3-flute straight-flute design provides adequate chip clearance in general tapping applications
• No coolant-through requirement - compatible with hand tapping and conventional machine tapping

Compatibility

Designed as an OEM-style hand tap for use in standard 1/2-20 UNF tapping applications requiring a plug chamfer, H3 thread limit, and 3B class of fit.

Installation Notes

Install using a properly sized tap wrench or machine tapping setup; ensure the tap is aligned perpendicular to the workpiece surface before beginning. Power down any machine tool and secure the workpiece before starting the tapping operation. Apply an appropriate cutting fluid for the workpiece material to extend tap life and improve thread quality. Inspect the tap for wear or damage before each use - a chipped or worn tap can produce out-of-tolerance threads or break in the hole.