Locking Pliers with Unique Non-Slip/gripping Screw Removal Jaws for The Easy Extraction of Damaged/Stuck Screws, Black/Green. Neji-Saurus mole Grip Pliers by ENGINEER (Medium)

Good quality item as you would expect with Japanese made tools. Works great for extracting screws, but if you plan on buying these to replace regular vise grips, you cant. It shows that the max it can take is 20mm pipe, it's not close to that. I'd say the max would be 10mm ish, tried 20 and it's impossible to close them no matter the setting it's on. Tried a 15mm bolt hex head and it couldn't do it. Tried 10mm round steel and it was able to clamp that,but I think these are mainly made as screw extractors. For screw extractor pliers they're 10/10.

Engineer is Japanese brand whose tools are of very high quality and designed for the professional user; a small number of specialist and semi-specialised items were purchased since the first introduction some years ago. Unlike other Oriental-made brands, the grade of steel used is high and very suitable for the task. Lesser Oriental brands use a cruder and softer steel that usually includes aluminium and other metals derived from vehicle scrap.This "ENGINEER pz-64 Locking Pliers, Black/Green" is not just another locking pliers but has its own unique features, firstly in the jaws that include vertical grooves to lock onto a screw head, nut, bolt etc should it have been previously damaged in some way and not removable by other means. It is then capable of removing it cleanly and easily. There are also the usual horizontal grooves, too, for every other situation. The tool is quite short, only 14 cm (approx 5.5 inches), and ideal for smaller tasks and use in tight spaces.Engineer have also modified the design from the usual. Not only have soft-grip handles been added but its overall design locks very differently to other 'Mole' wrenches; when most have a separate locking and release bar built into the section without the adjuster screw, this design needs only to have its handles prised gently apart. Otherwise, functionality is identical.Quality comes at a price and Engineer-brand tools are more expensive than other high-end equivalents. Compared with the bargain brands that may not survive the first half-dozen tasks facing them (many of those previously purchased failed after just one or two), these are most likely to survive a working lifetime.

I needed a new pair of mole grips, did a search and spotted these, I did read they are small but the job I needed them for was small anyway. Just arrived and they are even smaller than I thought they would be, I would go as far as saying they are like micro size in comparison to the old full size set Ihave, however, they are well made, have a great gripping strength and as another reviewer mentioned would be ideal in a restricted space like under the sink etc, I might still buy a new full size version eventually for bigger jobs.I have added a photo next to a BIC pen for scaleI have not had a pair of mole grips that don't have the release lever (the auto does) but I see comments about the other versions mentioning that, the grip is so strong I am surprised this has been omitted as it takes quite a bit of force to separate them.I also have a cheaper set of medium size mole grips (an impulse buy from Tesco I think) and they are not of good quality, the teeth and grip handle don't align and they feel as if they will fall apart when put under any strain, so are just about useless for any serious job, the point is, if you are going to buy a set of mole grips pay that bit extra for a more professional set, it will be worth it as they are a very versatile tool and if looked after will last a lifetime.

I tried a few other ways of getting the stripped screw out and couldn't do it. This worked in a minute with no drilling and no clean up required. I can't believe I'd never heard of these before!

It's early days but so far I'm impressed. The crisp and precise movement of the mechanism lets you know from the moment you start using this tool that it is well made. Grips well and as long as it isn't over-tightened it's easy to remove from a workpiece. Most wrenches based on the old Mole Wrench design have a pinch point in the grip end so you can easily catch your skin in them if you're not careful and they will draw blood every time you do that. These have no pinch point due to the more sophisticated design, and the rubber grips make them painless to squeeze hard if you need to, unlike most of the all-metal ones.Yet another Engineer brand tool that impresses.

These are designed for removing screw heads and bolt heads but I tried using it on a sheared bolt, it did not grip at all. However, the pressure exerted was fine. I bought a PZ59 set of pliers as well and whilst they didn't loosen the bolt in question either, they at least have a wider area for gripping screws (more than one lengthways ridge) and they did exert more of a grip on the bolt thread. So IMO the PZ59 are a superior tool. Obviously the PZ64 has locking pliers functionality too for other applications, but I'd be inclined to buy the PZ65 for this as they are just the right size in the hand. The PZ64 are very small and unless you need them for particularly small screw heads (I'd still rather use the PZ59 for this) or need them to fit in your pocket more easily, then stick with the PZ65. I had also bought the PZ65 which I decided to keep in the end, because whilst the bolt removal function is a bit pants in relative terms, it is better than a standard set of locking pliers, and is made of Cr Mo steel which is harder than the Cr V steel alloy used in Knipex locking pliers. Knipex claim oil hardening etc. I don't know how much difference it makes. If you use them on screw threads however it will damage the screw head gripping ridge slightly which is to be expected, they are designed for gripping heads.

I did buy & try the Locking Pliers with Unique Non-Slip/gripping Screw Removal Jaws for The Easy Extraction, after I used for a few days, I very impressed by it's quality, at which point I got my son a Locking Pliers, so he has his own & not use my Locking Pliers. Once set the Auto tension works very well on different size screws.