---
product_id: 766891308
title: "Crimping Tool Kit with 4.2mm Connectors (2-16 Pin, 24-16 AWG), Ratchet Wire Crimper Compatible with Molex Mini-Fit Jr, Amphenol Minitek Pwr 4.2 for PC Modding, ATX PSU GPU PCI-E Automotive"
brand: "someline"
price: "R$714"
currency: BRL
in_stock: true
reviews_count: 13
category: "Someline"
url: https://www.desertcart.com.br/products/766891308-crimping-tool-kit-with-4-2mm-connectors-2-16-pin
store_origin: BR
region: Brazil
---

# Supports 24-16 AWG high-current wires Flame-retardant Nylon 66 housing Precision ratchet crimping Crimping Tool Kit with 4.2mm Connectors (2-16 Pin, 24-16 AWG), Ratchet Wire Crimper Compatible with Molex Mini-Fit Jr, Amphenol Minitek Pwr 4.2 for PC Modding, ATX PSU GPU PCI-E Automotive

**Brand:** someline
**Price:** R$714
**Availability:** ✅ In Stock

## Summary

> 🔧 Crimp like a pro — power your builds with precision and style!

## Quick Answers

- **What is this?** Crimping Tool Kit with 4.2mm Connectors (2-16 Pin, 24-16 AWG), Ratchet Wire Crimper Compatible with Molex Mini-Fit Jr, Amphenol Minitek Pwr 4.2 for PC Modding, ATX PSU GPU PCI-E Automotive by someline
- **How much does it cost?** R$714 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/766891308-crimping-tool-kit-with-4-2mm-connectors-2-16-pin)

## 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

- • **Universal Compatibility:** Works seamlessly with Molex Mini-Fit Jr., Amphenol Minitek Pwr 4.2, and standard .062" terminals.
- • **Consistent OEM-Grade Crimps:** Auto-adjusting ratchet ensures perfect crimps every time, eliminating loose connections and signal failures.
- • **Optimized for High-Power PC Builds:** Engineered for 16 AWG wires to handle demanding GPU, PSU, and automotive electrical upgrades.
- • **Premium Flame-Retardant Connectors:** 4.2mm pitch housings made from UL94V-0 Nylon 66 for heat resistance and maximum safety.
- • **Ergonomic & Beginner-Friendly Design:** Non-slip TPR handles with quick-release lever reduce fatigue and simplify precise crimps.

## Overview

The SOMELINE Crimping Tool Kit features a precision ratchet mechanism for consistent, OEM-quality crimps on 24-16 AWG wires. Its flame-retardant Nylon 66 connectors ensure safety and durability, while universal compatibility supports Molex Mini-Fit Jr. and Amphenol Minitek Pwr 4.2 terminals. Designed for high-current PC modding and automotive wiring, this ergonomic kit delivers professional results with ease, making it essential for custom cable builds and repairs.

## 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 power supplies for the 24-pin ATX motherboard connector, 4/8-pin CPU power connector, and 6/8-pin PCIe graphics card power cables, ensuring reliable high-current delivery.Kit Configuration:2–16 Circuits Connectors24–16 AWG Pins30–16 AWG CrimperDouble-layer Storage BoxUser Manual

Review: Great tool for crimping rediculously tiny connectors - I ordered this kit to create connectors for robots with JST GH connectors, and at the end of the day I was able to crimp a a handful of my own cable harnesses. The components and pins all worked as expected, and I had no issues with fit or sizing. With that said, I greatly underestimated how difficult and time consuming it would be to crimp such small connections. It is VERY important to follow the included guide that describes the wire gauge and insulation thickness, otherwise it will not fit in the appropriate crimp channel. I found that the best way to get good crimps was to strip the wire so that only about 1mm of copper was exposed. then ratchet the crimp most of the way shut just enough to hold the un-crimped pin in place, then slide the cable in so that the insulation presses against the small shelf in the crimping tool, before finally crimping down. Paying close attention to position and length of wire made this a repeatable process. Overall I'm very pleased with the kit, included instructions, and the results.
Review: Kit is good, but very small parts require patience and practice. - The JST 1.0 connectors have unbelievably small crimp pins that you need to work with. It takes practice, expect to not get it right until the 5th try. If you are of a certain age, get some magnifying glasses, because you are going to need them! I have a crimp pin in D in the picture and one of the pins next to the crimper for scale. In the end I was able to repair the broken cable I had with this kit. The JST 2.0 connectors are likely easier to work with.

## Features

- PRECISION RATCHET CRIMPING TECH: Features an auto-adjusting ratchet mechanism that ensures a consistent, OEM-grade B-type crimp every time. Unlike manual pliers, this tool applies the exact amount of force needed, creating a rock-solid union between conductor and insulation. Designed for 30-16 AWG wires, it eliminates loose connections and signal failures in critical circuits
- HIGH-CONDUCTIVITY TERMINAL KIT (24-16 AWG): Includes premium tin-plated brass terminals specifically sized for 24-16 AWG wires, offering superior oxidation resistance and current stability. The 4.2mm pitch housings (2-16 Pin) are crafted from industrial-grade Nylon 66 (UL94V-0), strictly flame-retardant and heat-resistant from -40°C to +105°C for maximum safety
- VERSATILE CROSS-COMPATIBILITY: A truly universal solution. The crimping pliers and connectors are fully compatible with Molex Mini-Fit Jr., Amphenol Minitek Pwr 4.2, and Standard .062" series terminals. Whether you are sourcing replacement parts or building from scratch, this kit ensures a perfect mate with existing industry-standard headers
- ENGINEERED FOR HIGH-CURRENT PC MODDING: Specifically optimized for 16 AWG wire builds to handle the high-wattage demands of modern GPUs and PSUs. This makes it the essential tool for creating custom ATX, PCI-E, and EPS power cables, as well as automotive electrical upgrades, ensuring stable power delivery with lower heat generation
- 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 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #19,922 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #60 in Crimpers |
| Brand | SOMELINE |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (707) |
| Date First Available | July 10, 2025 |
| Grip Type | Ergonomic |
| Handle Material | Polypropylene(PP)+Thermoplastic Rubber(TPR) |
| Handle Type | Ergonomic |
| Handle/Lever Placement | on the tool |
| Included Components | 4.2mm Pitch Connectors Crimping Tool Kit |
| Item Weight | 1.47 pounds |
| Item model number | 2542M-21 |
| Manufacturer | SOMELINE |
| Material | Nylon |
| Package Dimensions | 9.69 x 4.21 x 2.04 inches |
| Part Number | 2542M-21 |
| Shape | 18 Types (2.54mm-4.2mm) |
| Size | 4.2mm |
| Usage | Electronic systems and devices, power and signal connections |

## Product Details

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

## Images

![Crimping Tool Kit with 4.2mm Connectors (2-16 Pin, 24-16 AWG), Ratchet Wire Crimper Compatible with Molex Mini-Fit Jr, Amphenol Minitek Pwr 4.2 for PC Modding, ATX PSU GPU PCI-E Automotive - Image 1](https://m.media-amazon.com/images/I/817Kje566QL.jpg)

## Available Options

This product comes in different **Item Shape** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great tool for crimping rediculously tiny connectors
*by P***T on December 1, 2025*

I ordered this kit to create connectors for robots with JST GH connectors, and at the end of the day I was able to crimp a a handful of my own cable harnesses. The components and pins all worked as expected, and I had no issues with fit or sizing. With that said, I greatly underestimated how difficult and time consuming it would be to crimp such small connections. It is VERY important to follow the included guide that describes the wire gauge and insulation thickness, otherwise it will not fit in the appropriate crimp channel. I found that the best way to get good crimps was to strip the wire so that only about 1mm of copper was exposed. then ratchet the crimp most of the way shut just enough to hold the un-crimped pin in place, then slide the cable in so that the insulation presses against the small shelf in the crimping tool, before finally crimping down. Paying close attention to position and length of wire made this a repeatable process. Overall I'm very pleased with the kit, included instructions, and the results.

### ⭐⭐⭐⭐⭐ Kit is good, but very small parts require patience and practice.
*by S***E on November 25, 2025*

The JST 1.0 connectors have unbelievably small crimp pins that you need to work with. It takes practice, expect to not get it right until the 5th try. If you are of a certain age, get some magnifying glasses, because you are going to need them! I have a crimp pin in D in the picture and one of the pins next to the crimper for scale. In the end I was able to repair the broken cable I had with this kit. The JST 2.0 connectors are likely easier to work with.

### ⭐⭐⭐⭐⭐ Great to fix connections
*by D***E on December 23, 2025*

Works great! Bought secondhand some pc fans, and one out of them all had its connector piece ripped off from the pin. This made it easy to put new pins into a new connector, which allowed me to use the fan instead of tossing it. This comes with a little tip paper, which is honestly easy to read and helpful. Worth the purchase 100%.

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-07*