- K KERNOWO 929D-V Electric Desoldering Soldering Iron Sucker – Desoldering Pump Tool with 1.0mm & 1.2mm Nozzles, Desoldering Gun with Wick & Cleaning Pin for Through-Hole Solder Removal

Can't believe how much easier PC board rework became with this. I will note that the indicator light stopped working on mine, which does not affect operation... the iron still gets hot and work perfectly.

My old Tenma was showing its age and I decided to get a new iron. This one is pretty high-tech compared to my old one, which has a big base and a knob to adjust the temp on. This new unit is lightweight and has a digital screen to show the current and target temp. Hold down a button and it turns on. Press the up and down to adjust the goal temp. After a few sec it switches back to displaying live temp, and you can see it quickly rise and stop when it hits the goal. This is my first time owning a soldering iron with a digital readout. I found I do have to wait 20-30 sec for the actual temp on the tip to stabilize, so there's some inertia in the heat. It also can struggle on larger items because it takes 15-20 sec to catch up the heat on large items. So when I turn it on to use it, I set the temp, it comes up and stops, and I have to give it another 15 sec before it will melt solder, as I wait for the heat to get to the end of the tip. Also I keep needing to tighten the twist on the bottom of the iron that holds the tip because it keeps coming unscrewed. I suppose that's the heating and cooling that keeps loosening it but I don't want to crank it hard and break it. My old iron has this issue (less frequently) too, so I suppose I just need to give it a harder twist. Depending on what I'm working on, I periodically need to adjust my temps so I'm not cooking small partsor taking forever to solder larger ones, so that ends up with a lot of button pressing. With a knob I'm not really concerned about wear and tear, but these push buttons do leave me wondering if I'm going to eventually wear them out like I've seen happen with push button adjustments on other devices I own. So I haven't decided yet if this is an improvement over my old iron or not. It does have an "auto shutoff" feature though which is nice. Unlike my old iron, it doesn't have any bright lights on it to remind you that it's on, but it will sense when you haven't handled it in several minutes and will turn down the temp. It doesn't turn off completely though, which might be a better idea?

I like how easy it is to maneuver for a corded soldering iron. I work with very small components mostly and the pointed tips work well. I don't think the temperature control is worthwhile. At higher than normal settings it still didn't melt solder. I cranked it up to max and it does great. You need to know how to solder of course so you don't cook a pad with any iron but Yes, it's a good buy this price. I bought another like it that was a little cheaper with a dial thermostat just to get the extra tips and stuff. They are so cheap that the extra included tips, flux. solder, etc. cost more to order separately. Got a back up iron now.

100 times better than my old plastic one!

I find this item to be sufficient for desoldering electronic components with ease. Less than 3 seconds on the post and hit the button. Clean and effective removal of solder. The cleaning of the vacuum canister is very easy and seems to be well constructed. If you are removing several components as I tried for experimental purposes, you might only need to wait 5 seconds to recover tip heat on larger post components. Great value and highly recommended!

I do a lot of circuit board repairs - mostly game controllers. It is always a challenge to desolder buttons and sticks because of the multiple through-board solder points and the lead free solder that manufacturers use is high melting and finicky. An unheated solder sucker is super awkward to use and requires 2 hands - one for the sucker and one for the heater. This heated sucker is super easy to use - after it is well warmed up, you just set it over the soldered pin for a couple of seconds and then hit the button and you get a nice desoldered joint. It helps if you add a little bit of lead solder to the joint if it doesn't suck clean at first. I prefer this to using a heat gun to desolder because the gun can melt the solder of nearby surface-mounted components which can then be knock off and lost.

This thing is great and works as advertised. Saved me hours of mesimg with wic.

THIS REVIEW HAS BEEN UPDATED. Rating downgraded due to poor quality tips, see below. Initially, this iron did exactly the job it's meant for. It made quick work of de-soldering some sockets on a piece of retro kit I needed to fix. It has issues, though: 1) There is no temperature control, the iron just run at a fixed power level. For de-soldering, that's fine if you have good dexterity and a light touch, but if you aren't careful, this iron will damage the PCB by overheating it. 2) That high temperature causes it to fairly quickly oxidize its de-soldering tips, so the tinning essentially "wears off" after a matter of minutes. The tips are hard to re-tin once that happens. A steel wire brush is only just barely enough to break the oxidation. 3) While the iron and pump themselves seem to be holding-up just fine, the desoldering tips that come with this tool are just JUNK! A good tip is critical to successful desoldering, and the ones this comes with begin to wallow-out from the inside VERY quickly, and have a rather wide outer diameter, which increases the risk of board damage due to overheating. In fact after a few hundred more pins since my initial use, the 1 mm nozzle actually lost a tiny chunk at the tip -- the metal had worn completely through, resulting in a hole right at the edge, thus making it impossible to draw a vacuum through the target component pin hole. I don't think I got even 10 hours of use out of it before it failed. The other one is already wallowed-out way beyond normal, and it's only done a couple hundred or so pins, so it's already starting to have trouble keeping the heat on the pad since it can't keep itself centered. It won't be too much longer before this tip is trashed also. These tips are clearly made of some soft or inferior metal. I assume copper, but a good soldering iron uses an iron or steel tip, thus a good desoldering iron needs that also. For comparison, I've probably done thousands of pins with my T12, and it's showing no signs yet of the tip wearing significantly. Going by the rate of wear, I would say this tool should have come with at least 10 replacement tips of each size. Or anyway at least enough to get a good couple hundred hours of use before it's time to restock. Bottom line: This tool will probably work fine if you're in a pinch, but if you plan on actually doing desoldering in the long term, DO NOT BUY THIS ITEM unless you can also get good quality, HARD tips for it that won't wear out prematurely.

Good soldering iron with plenty of capabilities. Sufficient heat to desolder components from multi layer printed circuit boards.

buen producto,exelente calidad,cumple con lo prometido

Utiliser pour moteur électrique de bateau , un produit qui était tel que décris et de plus la température est réglable ce qui est très utile selon la soudure à faire . Tout équiper prêt à l’utilisation . Meilleur rapport qualité prix selon mon avis .

Nice small and portable unit, heats up pretty fast and has a variety of different head shapes. Good for beginners.

This tool is exactly as described. It heats up very, very fast... Easy to hold, easy to use, quite satisfied.