Hertel K014631AS 3/4-10 Unc Plug Tap 4 Flute Hss

Product Description

The HERTEL K014631AS is a straight flute plug tap designed for cutting 3/4-10 UNC internal threads in a wide range of materials. Manufactured from high speed steel with a bright uncoated finish, this tap is built for general-purpose threading where coolant-through capability is not required. The plug chamfer - typically 3 to 5 threads - makes it suitable for through-holes and semi-blind applications where the tap can be started and guided with minimal axial force. With 4 flutes and an H11 thread limit, it holds close dimensional tolerances and is suited for applications requiring a slightly oversize thread fit, with an oversize value of 0.0050 inches. Overall length is 4.25 inches and the tap weighs 0.3 pounds.

This tap is used in machining and maintenance environments where 3/4-10 UNC threads are required. Typical applications include fabrication shops, repair facilities, and production environments threading ferrous and non-ferrous workpieces. Right-hand thread direction is standard for conventional tapping operations on manual or CNC equipment. The plug chamfer style is the most commonly stocked configuration for general through-hole and moderate-depth blind-hole work.

Key Features

• 3/4-10 UNC thread form for standard unified coarse thread applications
• Plug chamfer provides 3 to 5 thread lead for versatile through-hole and semi-blind use
• H11 thread limit with 0.0050 inch oversize for controlled fit tolerancing
• 4 straight flutes for chip clearance in a variety of materials
• High speed steel construction for durability in general-purpose threading
• Bright uncoated finish - no coating buildup to affect thread dimensions

Compatibility

Designed as a standard OEM-style replacement or direct-use tap for any application requiring a 3/4-10 UNC straight flute plug tap in high speed steel.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with tapping operations. Ensure the workpiece is securely fixtured and the tap is properly aligned to the drilled pilot hole before engaging. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. For manual tapping, use a calibrated tap wrench; for machine tapping, verify spindle speed and feed rate are appropriate for the material and tap geometry before starting the cut.