---
product_id: 394026282
title: "DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4\" 5/16\" 3/8\" 7/16\" 1/2\""
brand: "dayuan"
price: "$110.92"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/394026282-dayuan-131pc-sae-thread-repair-kit-hss-drill-helicoil-kit
store_origin: US
region: United States of America
---

# Heat-treated 45# steel inserts for max strength HSS drill for precision & durability Multi-size kit covers 1/4" to 1/2" threads DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"

**Brand:** dayuan
**Price:** $110.92
**Availability:** ✅ In Stock

## Summary

> 🔧 Fix it right, fix it tight — the pro’s choice for thread repair!

## Quick Answers

- **What is this?** DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2" by dayuan
- **How much does it cost?** $110.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/394026282-dayuan-131pc-sae-thread-repair-kit-hss-drill-helicoil-kit)

## Best For

- dayuan enthusiasts

## Why This Product

- Trusted dayuan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Durability:** Heat-treated 45# steel helicoil inserts provide long-lasting thread reinforcement under heavy use.
- • **Versatile Size Range:** Covers common thread sizes from 1/4" to 1/2", perfect for a wide range of maintenance tasks.
- • **Restore & Protect Threads:** Ideal for repairing stripped threads or proactively preventing wear and tear on critical components.
- • **Precision Engineered HSS Tools:** High-speed steel drill and installation tools ensure flawless thread repair every time.
- • **Professional-Grade Reliability:** Trusted by pros for consistent performance, making your toolkit future-proof and ready for any challenge.

## Overview

The DAYUAN131PC SAE Thread Repair Kit features high-speed steel drills and heat-treated 45# steel helicoil inserts designed to restore and protect stripped or damaged internal threads. Covering sizes from 1/4" to 1/2", this professional-grade kit offers durable, precise, and versatile thread repair solutions for maintenance and longevity.

## Description

DAYUAN

## Features

- PURPOSE BUILT: The installation tools in this helicoil kit are constructed from high-speed steel for superior handling while the inserts are heated-treated 45# steel for greater strength and longevity in place
- WIDE APPLICATION: Our drill and tap set is ideal for restoring stripped or damaged internal threads as well as for performing maintece work to protect any threads from wear and tear
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Yinyuan Tools |
| Brand | DAYUAN |
| Package Dimensions | 38.7 x 19.1 x 3.9 cm; 2.41 kg |
| Item model number | YT-99654 |
| Manufacturer Part Number | YT-99654 |
| Item Weight | 2.41 Kilograms |

## Images

![DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2" - Image 1](https://m.media-amazon.com/images/I/71cUWQL6-nL.jpg)

## Frequently Bought Together

- DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"
- HORUSDY Helicoil Thread Repair Kit, Metric 131Pcs HSS Drill Helicoil Repair Kit, M5 M6 M8 M10 M12 Rethreading Tools Automotive Engine,Spark Plug, Cylinder Insertion

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**Shop now:** [https://www.desertcart.us/products/394026282-dayuan-131pc-sae-thread-repair-kit-hss-drill-helicoil-kit](https://www.desertcart.us/products/394026282-dayuan-131pc-sae-thread-repair-kit-hss-drill-helicoil-kit)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-06*