Overview

The KENNEDY UNC Thread Repair Kit is a professional solution for repairing stripped, worn, or damaged UNC threads while also being suitable for creating durable threads in new components. Each comprehensive kit contains all the essential tools required for quick and accurate thread restoration, including a drill bit, tap, installation tool, tang break punch, and ten premium stainless steel wire inserts.

Manufactured using aircraft-quality stainless steel inserts, repaired threads are often stronger than the original parent material, making the kit ideal for engineering workshops, automotive repair, machinery maintenance, OEM manufacturing, and industrial applications. Supplied in a rugged storage case with a moulded inlay, every component remains protected and organised for convenient transport and long service life.

Key Features

Complete thread repair solution for UNC threads
Restores stripped, damaged, or worn internal threads
Suitable for repairs and new thread installations
Aircraft-quality stainless steel wire inserts
Creates stronger threads than many parent materials
Includes drill, tap, installation tool, tang break punch, and inserts
Durable moulded storage case keeps components organised
Ideal for engineering, automotive, maintenance, and OEM applications

Multi-Variation Specification Table

SKU	Thread Size	MFR Part No.
KEN6212205R	5/16"-18 UNC	5/16UNCKITKEN
KEN6212325R	1/2"-13 UNC	1/2UNCKITKEN

General Technical Specifications

Specification	Details
Brand	Kennedy
Product Type	Thread Repair Kit
Thread Form	UNC
Insert Material	Aircraft-Quality Stainless Steel
Insert Length	1.5 x Diameter (1.5D)
Package Quantity	10 Inserts
Tap Type	Second Lead
Storage Case	Heavy-duty moulded case with inlay
Applications	Thread Repair & New Thread Creation
Suitable Industries	Automotive, Engineering, Industrial Maintenance, Manufacturing
Standards	Professional Industrial Quality

Package Contents

Each kit includes:

1 × Precision Drill Bit
1 × Thread Repair Tap
1 × Insert Installation Tool
1 × Tang Break Punch
10 × Stainless Steel Thread Inserts
1 × Heavy-Duty Storage Case

Warranty Terms

KENNEDY Thread Repair Kits are covered against manufacturing defects under normal professional use. The warranty does not cover damage resulting from misuse, incorrect installation, abuse, accidental damage, or normal wear of consumable components.

Why Kennedy

For decades, KENNEDY has been trusted by engineers and industrial professionals worldwide for delivering high-quality tools built for reliability and precision. Kennedy thread repair kits are manufactured to professional standards, offering durable components, premium stainless steel inserts, and dependable performance for demanding workshop and maintenance applications. Whether repairing damaged threads or producing stronger new threads, Kennedy provides the quality and confidence professionals rely on.