---
product_id: 766891308
title: "SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY"
brand: "someline"
price: "₨31242"
currency: LKR
in_stock: true
category: "Someline"
url: https://www.desertcart.lk/products/766891308-someline-mini-fit-jr-connector-crimping-tool-kit-18-types
store_origin: LK
region: Sri Lanka
---

# 2-16 Pin 4.2mm connectors 30-16 AWG crimp range Ratcheting crimper with quick release SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY

**Brand:** someline
**Price:** ₨31242
**Availability:** ✅ In Stock

## Summary

> 🔧 Crimp like a pro, connect like a boss!

## Quick Answers

- **What is this?** SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY by someline
- **How much does it cost?** ₨31242 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/766891308-someline-mini-fit-jr-connector-crimping-tool-kit-18-types)

## Best For

- someline enthusiasts

## Why This Product

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

## Key Features

- • **Precision Ratcheting Power:** Auto-adjusting ratchet delivers consistent, gas-tight crimps every time, minimizing contact resistance for flawless electrical connections.
- • **Versatile Application Range:** From PC ATX power supplies to 3D printers, automotive electronics, and industrial automation—this kit is your all-in-one solution for high-density, high-current wiring.
- • **Ergonomic Grip for Extended Use:** Non-slip TRP handle and quick-release lever reduce hand fatigue and speed up workflow—ideal for pros and DIYers who demand comfort and efficiency.
- • **Industry-Standard Compatibility:** Seamlessly works with Molex Mini-Fit Jr. and Amphenol Minitek Pwr systems—perfect for upgrading or building new harnesses without compatibility worries.
- • **Durable Flame-Retardant Connectors:** UL 94V-0 nylon housings rated for 13A max current and extreme temps (-40°C to +105°C) ensure safety and reliability in demanding environments.

## Overview

The SOMELINE Mini-Fit Jr Connector Crimping Tool Kit offers a ratcheting crimper compatible with 2-16 pin 4.2mm connectors and 24-16 AWG terminals. Engineered for Molex Mini-Fit Jr and similar industry-standard connectors, it features flame-retardant nylon housings rated for 13A and extreme temperatures. Its ergonomic design with a quick-release lever ensures precision, comfort, and durability, making it ideal for PC power supplies, 3D printers, automotive electronics, and industrial wiring projects.

## Description

SOMELINE 2542M hand crimping tool for Molex Mini-Fit Jr and Standard .062" crimp terminals. It can also be used for crimping Dupont 2.54mm and KF2510 connector terminals. When a crimping tool is used on a terminal, two crimps take place at the same time. One is the electrical connection between conductor and terminal. The other is the insulation crimp which provides strain relief against vibration and tension. Using a good quality crimping tool will ensure that a full, gas tight crimp is produced preventing future deterioration of the electrical connection and insulation breakage.Mini-Fit Jr. 4.2 mm plug and receptacle housings are made of UL94V-0 flame-retardant nylon with a secure latch. They are suitable for high-current, high-density wire-to-wire or wire-to-board applications such as consumer electronics, industrial equipment, and automotive electronics. Commonly used in PC Motherboard ATX and CPU EPS power supplies.Kit Configuration:2–16 Circuits Connectors24–16 AWG Pins30–16 AWG CrimperDouble-layer Storage BoxUser Manual

## Features

- RATCHETING CRIMPER: Crimping range covers 30-16 AWG, engineered for Molex Mini-Fit Jr. 4.2 mm, Standard .062" 3.68 mm, Dupont 2.54 mm, and KF2510 terminals. The auto-adjusting ratchet ensures a standardized B-type (F-crimp) profile, applying calibrated force to both conductor and insulation grips to minimize contact resistance
- ELECTRICAL & MATERIAL SPECIFICATIONS: Includes 2-16 Pin 4.2mm pitch housings molded from flame-retardant Nylon 66 (UL 94V-0). Operating Temperature: -40°C to +105°C. Rated Current: 13A max. The 24-16 AWG terminals are manufactured from tin-plated copper/brass with dual locking tangs, offering high oxidation resistance and stable current delivery under mechanical vibration
- INDUSTRY STANDARD CROSS-COMPATIBILITY: Connectors are fully interchangeable with standard Molex Mini-Fit Jr. 4.2 mm (5557/5559/5556/5558) and Amphenol Minitek Pwr 4.2 systems. Designed for strict mating compatibility with existing industry-standard headers for both component replacement and new wire harness builds
- WIDE APPLICATION: Engineered for highly reliable wire-to-wire power delivery, the Mini-Fit Jr. 4.2 mm connectors are widely used in PC Motherboard ATX and CPU EPS power supplies. Additionally, they are ideal for complex multi-circuit wiring in industrial automation (PLC), HVAC control boards, 3D printers, e-bike BMS, automotive electronics, and arcade machine restorations
- ERGONOMIC & BEGINNER-FRIENDLY: Designed for efficiency without fatigue. The non-slip TRP handle provides a comfortable grip for prolonged use. Features a built-in Quick Release Lever that allows you to open the jaws safely if a terminal is misplaced or stuck, making it easy for both DIY hobbyists and professionals to achieve perfect results

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FH68MGK2 |
| Best Sellers Rank | #70,054 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #237 in Crimpers |
| Brand Name | SOMELINE |
| Color | White |
| Customer Reviews | 4.4 4.4 out of 5 stars (170) |
| Grip Type | Ergonomic |
| Handle Material | Polypropylene(PP)+Thermoplastic Rubber(TPR) |
| Handle Type | Ergonomic |
| Included Components | 4.2mm Pitch Connectors Crimping Tool Kit |
| Manufacturer | SOMELINE |
| Manufacturer Part Number | 2542M-21 |
| Model Number | 2542M-21 |
| Set Name | Mini-Fit Jr 4.2mm: 2-16 Pin + 1 Tool |
| Size | 4.2mm |
| Specific Uses For Product | Electronic systems and devices, power and signal connections |
| Unit Count | 1 Count |

## Product Details

- **Brand:** SOMELINE
- **Color:** White
- **Grip Type:** Ergonomic
- **Handle Material:** Polypropylene(PP)+Thermoplastic Rubber(TPR)
- **Handle Type:** Ergonomic

## Images

![SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY - Image 1](https://m.media-amazon.com/images/I/817Kje566QL.jpg)
![SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY - Image 2](https://m.media-amazon.com/images/I/81A2590ClWL.jpg)
![SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY - Image 3](https://m.media-amazon.com/images/I/81XpBplPwvL.jpg)
![SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY - Image 4](https://m.media-amazon.com/images/I/71iUb9GchVL.jpg)
![SOMELINE Mini-Fit Jr Connector Crimping Tool Kit, 18 Types 2-16 Pin 4.2mm Connectors with 24-16 AWG Terminals, Ratcheting Crimper, Compatible with Molex, for PC ATX EPS Power, 3D Printer & DIY - Image 5](https://m.media-amazon.com/images/I/81EuvEsInAL.jpg)

## Available Options

This product comes in different **Set** options.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-08-20*