Hertel K1001190951 Hand Tap 8-32 Unc Plug 3-flute Hss

Product Description

The HERTEL K1001190951 is a straight-flute hand tap designed for cutting 8-32 UNC internal threads in a wide range of materials. Built from high speed steel with a bright, uncoated finish, it features a plug chamfer entry and three flutes to efficiently clear chips during hand-tapping operations. The H7 thread limit designates a slightly oversized tolerance class, allowing for thread fits that accommodate plating or other post-process surface buildup. With an overall length of 2.125 inches and a thread length of 0.75 inches, this tap is sized for compact through-hole and blind-hole applications. Licensed machinists, tool-and-die makers, and maintenance technicians are the primary users of this tool.

This tap is suited for hand-tapping 8-32 UNC threads in light-to-medium production and maintenance repair operations. Typical applications include threading holes in steel, aluminum, and brass workpieces where a controlled H7 oversize condition is required. The plug chamfer, with its moderate lead-in, makes it equally effective in through holes and sufficiently deep blind holes. It is a common choice in job shops, field maintenance environments, and bench work settings where a reliable, general-purpose UNC tap is needed.

Key Features

• 8-32 UNC right-hand thread form with plug chamfer for versatile through-hole and blind-hole use
• H7 thread limit provides controlled oversize condition of 0.003 inches, suitable for plated or coated parts
• High speed steel construction delivers durability across a broad range of workpiece materials
• Bright uncoated finish allows easy visual inspection of cutting edges between uses
• Three straight flutes promote efficient chip evacuation during hand-tapping operations
• Compact 2.125-inch overall length fits standard tap handles and T-handle wrenches

Compatibility

Designed as a standard replacement or stock hand tap for 8-32 UNC threading operations; fits conventional tap handles and T-wrenches sized for the 0.168-inch shank diameter and 0.131-inch square drive.

Installation Notes

This tap is intended for use by machinists or qualified maintenance technicians performing hand-tapping operations. Secure the workpiece firmly before tapping and use an appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Apply steady, even pressure and back off periodically to break chips, particularly in blind holes. Inspect cutting edges before use and replace the tap if chipping or wear is observed to avoid thread damage.