--- product_id: 49990805 title: "Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21" brand: "engineer" price: "€ 104.36" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.fi/products/49990805-precision-universal-crimping-tool-for-crimping-mini-crimp-pins-made store_origin: FI region: Finland --- # Crimps 100+ mini pin types Ergonomic TPR grips for comfort Precision Japanese craftsmanship Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21 **Brand:** engineer **Price:** € 104.36 **Availability:** ✅ In Stock ## Summary > 🔧 Master every mini pin with precision and style! ## Quick Answers - **What is this?** Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21 by engineer - **How much does it cost?** € 104.36 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/49990805-precision-universal-crimping-tool-for-crimping-mini-crimp-pins-made) ## Best For - engineer enthusiasts ## Why This Product - Trusted engineer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ergonomic Excellence:** TPR thermoplastic rubber grips provide a comfortable, non-slip hold for extended professional use without fatigue. - • **Dual-Action Precision:** Separately crimps conductor and insulation parts for tailored force control and flawless pin curling every time. - • **Universal Compatibility:** Effortlessly crimps over 100 mini crimp pin types from top vendors, eliminating the need for multiple tools. - • **Trusted Japanese Quality:** Crafted in Japan to meet rigorous ROHS and Japanese standards, ensuring durability and consistent performance. - • **Cost-Effective Professionalism:** Delivers high-end crimping results at a fraction of the cost of vendor-specific tools—smart savings for savvy pros. ## Overview The ENGINEER PA-21 Precision Universal Crimping Tool is a Japanese-made, high-carbon steel plier designed for professional electronics assembly. It crimps over 100 types of mini crimp pins with dual-action force control for conductor and insulation parts, featuring ergonomic TPR grips for comfort. This versatile tool offers exceptional pin curling results, meets ROHS standards, and provides premium quality at a competitive price. ## Description The ENGINEER crimping pliers facilitiate the crimping of the conductor part of the pin and the insulating part of the pin individually/separately (therefore two crimping actions per pin), this allows the user to finely adjust the crimping force applied to suit (for example, more force applied when crimping the conductor, with less force applied on delicate insulation). Additionally, this type of crimping arrangement allows the pliers to be more adaptable & versatile, thereby resulting in these pliers being able to crimp many different pin variants across several Manufacturers' pin products. ## Features - Crimps over 100 different types of mini crimp pins from the main terminal pin vendors. - Also capable of crimping open barrel pins with longer type wings…yielding an excellent 'pin curling' result. - Professional results (& at a fraction of the price charged by the pin vendors for their own specific crimping tools). - TPR (Thermoplastic Rubber) grips - a delight to hold & use. - Made in Japan ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B002L6HJ8W | | Best Sellers Rank | 57,522 in DIY & Tools (See Top 100 in DIY & Tools) 167 in Crimpers | | Brand | ENGINEER | | Colour | Orange | | Country Of Origin | Japan | | Customer Reviews | 4.7 4.7 out of 5 stars (2,449) 4.7 out of 5 stars | | Global Trade Identification Number | 04989833035211 | | Grip Type | Contoured | | Handle Material | High Carbon Steel | | Handle Type | Contoured (non-spring) | | Included Components | PA-21 crimping tool | | Item Dimensions L X W | 17.3L x 5.3W centimetres | | Item Type Name | (Made in Japan) Open-Barrel Crimping Pliers featuring higher crimp lug height capability, perfect results on Molex Mini-Fit Jr. + other long wing type of insulation barrels (lugs) | | Item Weight | 0.01 Ounces | | Manufacturer | ENGINEER | | Model Number | PA-21 | | Part Number | PA-21 | | Set Name | single | | Size | 175 mm | | Specification Met | ROHS, Japanese standards | | Unit Count | 1.0 count | | Upc | 798256186875 | | Usage | Electronics assembly, repair, and maintenance | ## Product Details - **Brand:** ENGINEER - **Colour:** Orange - **Item weight:** 0.15 Kilograms - **Product dimensions:** 17.3L x 5.3W centimetres - **Handle material:** High Carbon Steel ## Images ![Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21 - Image 1](https://m.media-amazon.com/images/I/61tiRddWRSL.jpg) ![Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21 - Image 2](https://m.media-amazon.com/images/I/514AdHLVKpL.jpg) ![Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21 - Image 3](https://m.media-amazon.com/images/I/714Kc8dWeqL.jpg) ![Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21 - Image 4](https://m.media-amazon.com/images/I/71aOkkNx-5L.jpg) ![Precision Universal Crimping Tool for Crimping mini Crimp pins. Made in Japan. ENGINEER pa-21 - Image 5](https://m.media-amazon.com/images/I/61wEUqIikEL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ A simple set of crimpers, that work extremely well. *by on Reviewed in the United Kingdom 16 August 2020* Another excellent quality tool from the Japanese 'Engineer' company.These are a pair of manual crimpers for individual connection pins, such as Jst or Dupont pins. They are spring opening, with a catch to keep them closed when not in use. They come on a blister card, which has some helpful instructions and sizes on the back. (Photo).There is nothing fancy about them.There is no ratchet mechanism, no holding mechanism. All you get are a pair of manual grip crimpers. (Photo).Fortunately, none of that is really necessary and these work extremely well.In fact they are the best I've used.You place the pin in the relevant sized hole and squeeze. You do the conductor first, then move the pin to crimp the insulation.It works extremely well. Just make sure you use the right size hole.It can be fiddly, so it's a massive advantage if your pins are still attached to their manufacturing strip.You can still crimp the pins if they are individually loose, but it is a lot more fiddly.'Engineer' do 3 different sizes of these crimpers.I personally think that these, the PA-20, are the most useful. I have never had to use a size bigger than 2.3mm or smaller than 1.6mm in all my years, so, I can't imagine needing a different pair.Your circumstances may be different, but if you are crimping standard 2.54mm pitch pins, these are the ones you want.Overall, these are a great set of crimpers, that work really well.Yes, they are a little expensive, but with nothing to go wrong, there is no reason why these shouldn't last a life time.Recommended.I hope you found this review helpful. ### ⭐⭐⭐⭐⭐ Well made, but not without problems. *by on Reviewed in the United Kingdom 31 December 2021* I have been using this now for a couple of cheers to crimp JST pins onto ribbon cables, I love the JST connectors but I really do not like crimping them.There's a definite "knack" to using this tool, and even having crimped thousands of these, I still find them very fiddly to crimp.The JST crimps have 2 tab sections, one is used to crimp to the insulator ensuring that the cable is held in place, and the second is the actual terminal itself.The method that works for me is:1.) bend the insulator tabs inwards very slightly with needle nosed pliers, if you don't do this, you won't be cable to perform the actual crimp.2) place the crimp into this tool, I rotate the tool in my hand so the legend is facing away, I need to do this is ensure that I'm only crimping the insulator and not the other tabs, I gently close the tool slightly to grab the crimp, then rotate the tool back so the legend is visible, the back of the connector is now facing me.3.) As I'm looking at the rear of the crimp, I insert t he cable into the crimp and look at the other side to make sure that I haven't pushed the cable in too far or not enough, it should be positioned so that the cable insulator is touching the outer tab, and the conductor is touching the inner tabs.4.) very carefully I close the tool to perform the crimp.At this point, you might get a good crimp, or, you might end up with the crimp rotating in the tool jaws, in which case you have to reset everything and try again, the final problem you may get is that the tabs just didn't fold properly, in which case you need to remove the crimp/cut it off/trim the cable and so on.If the crimp was OK, then you repeat the process again, and crimp the inner tabs, just make sure that you check that you are not crushing the end of the crimp, if you do the pin won't be usable.Other issues also include the crimp bending.It works reasonably well most of the time, but sometimes they can be infuriating, especially when the tabs don't fold properly.This is a common issue I've read with this tool, but this is one of the best tools for these crimps, so I kind of just live with these issues.Take your time, and inspect everything before you make the actual crimp.It's also well worth having a multimeter set to "beep" mode, after crimping you should check that the cable is ok, sometimes the cable may more and the conductor might make no or poor contact. ### ⭐⭐⭐⭐⭐ Excellent tool that provides a very high success rate. *by on Reviewed in the United Kingdom 20 February 2023* Perfect tool for crimping connectors. Well made, pressure is controlled by you not by a ratcheting mechanism - which is what you want. These haven't failed me once.I see some people suggesting you crimp the connectors holding the insulation first then do the wires.Don't do it like that.1) Put the connector with the wire crimps in the centre in a suitable slot eg 1.4mm for JST-XHThe fins for the insulation should be sticking out and shouldn't be in the crimp at this point.2) Insert the wire so that the insulation is just level with the inner part of the outer wings/fins.3) Crimp.4) Pinch the insulation wings/fins slightly to narrow the gap a little - finger pressure is fine at this point.5) Carefully move the wire and crimp to the appropriate slot (1.9mm for JST-XH) with the outer insulation wings/fins in the slot.6) Crimp again.Open the jaws and take out your newly crimped wire. Using this method you can pretty much guarantee success every single time. I've used these for Dupont connectors and JST-XH with great results.If in doubt, watch the video in the listing it's not marketing fluff it shows you exactly what to do.Yes they cost a bit more but they are, honestly, worth it. ## Frequently Bought Together - ENGINEER PA-21 Engineer Precision Crimping Pliers, Crimping Tool, Open Barrel, Long Barrel Terminal - ENGINEER PA-07 Precision Wire Strippers, Professional Grade Sharp Carbon Steel Jaws and Anti-Slip Grip with Spring-Loaded Handles (Made in Japan) - ENGINEER PA-14 Professional Precision Wire Strippers for thin wire (AWG34 - AWG22), sharp and perfectly round finishing edge, Spring loaded Comfortable Handles, Made in Japan --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fi/products/49990805-precision-universal-crimping-tool-for-crimping-mini-crimp-pins-made](https://www.desertcart.fi/products/49990805-precision-universal-crimping-tool-for-crimping-mini-crimp-pins-made) --- *Product available on Desertcart Finland* *Store origin: FI* *Last updated: 2026-07-04*