KAIFNT K505 Manual Impact Screwdriver/Extractor Set, 1/4-Inch, 32-Piece

Managed to remove 7 VERY stubborn oil pump cover bolts on a Jeep 3.8 V6 timing cover. Regular T27 bits were bending the drive fins when used with a ratchet. The bolts were in like they had Locktite on them, but they were just in solidly after 15 years of service. The T27 bit showed no damage after use. Excellent tool, but a warning -- there were no instructions included ( I already have larger units so I knew how it worked). I would recommend wearing very grippy gloves and turning in desired direction as you strike the driver (use a steel faced deadblow for best results and safety glasses of course). All in all an excellent tool.

I use these 1/4” impact drivers on all sorts of stuck hardware. They’re great and save from stripping the screw heads.

When it comes to tackling stubborn, rusted, or damaged screws, I know I can count on the KAIFNT K505 Manual Impact Screwdriver/Extractor Set. With its 32-piece set, I feel confident that I have everything I need to take on any project that comes my way. The impact force is instantaneous and loosens even the toughest screws without damaging them, which is a huge relief.One of the best features of this set is the forward and reverse function that allows me to easily tighten and loosen screws with ease. The comfortable slim handle with its corrosion-resistant black chrome plated finish adds to the durability of the tool and makes it easy to grip.The compact blow-molded case is perfect for keeping everything organized and easily accessible. I love that I can quickly find the exact piece I need without having to dig through a messy toolbox. The case also helps to protect the tools from damage, making sure they are always ready to use.Included in the set are 19-piece impact bits, 3-piece screw extractors, 8-piece nut drivers, and an impact driver. The variety of pieces in this set means that I can handle almost any type of screw or bolt I come across. I no longer have to worry about stripping screws or damaging them in the process of removal. If the screw heads are already stripped, then the screw extractors are great bonus. I can drill out the stripped screw and tap on the extractor to loosen the screw.Overall, I highly recommend the KAIFNT K505 Manual Impact Screwdriver/Extractor Set for anyone who needs to deal with stubborn screws or bolts. With its instant impact force, comfortable handle, and compact case, this set is a must-have for any DIY enthusiast.

KAIFNT K505 Manual Impact Screwdriver/Extractor Set, 1/4-Inch, 32-PieceWhat's in the box.1 impact driver19 impact screwdriver bits1 impact extension Bit3 broken screw/Bolt extractors8 hex nut impact driversRed plastic blow molded caseIt is a solid heavy impact driver that positively holds the bits. As you can see on one of my photos there is an arrow and a L and R on the shaft of the driver. You push the end of the driver in a small amount and this let's you turn the the L or R symbol to align with the arrow. There are no instructions so I am making the assumption that you would only ever use the R for tighten to put in a bit to remove a broken screw or bolt.Overall a good tool but maybe priced a little high at the current listing of $29.99. My only regret is that I don't currently have some sort of stubborn screw to use it on. (Okay, I am glad I currently don't have a broken or stubborn fastener).This is a five star tool but I am taking a star off as I believe it is over-priced.Thank you for reading my review and looking at my photos of this product. I hope you found it helpful!REVIEW PHILOSOPHY: I only review a product if it is something I am capable of critically evaluating through comparison, testing and use. This means I have experience of using similar items; or that I have equipment or tools that I can test it with; or that I have an upcoming need so I can actually use. I am as selective about getting an item to review as I would be about purchasing that same item, so yes, I expect it to be a good product. My reviews are NOT based on packaging or if it was delivered timely.

I've never heard of KAIFNT, but after seeing their logo on the container for the impact set I checked them out and am pleased. It is made in Taiwan, not you know where, and the machining of the pieces look top notch. If you don't know what this is, it's an impact extractor, and it has all sorts of bits for screw extracting, and extracting small sized nuts and screws. Of note, the heads for this are normal sized hex heads. I have another massive and heavy screw extractor I compared to this. That one uses a thicker and larger sized heads.There is a ring towards the bottom, and you can rotate it to see the mechanism. I found you can actually make this an impact tightener by pushing the tip in, then rotating it. You'll see the mechanism change from loosen to tighten. This is a nice feature to add!Since this uses the smaller sized bits, I would only use it for smaller seized screw applications. If you were trying to get a rusted nut loose from the undercarriage of your car, I would recommend a heavier extractor. But, for the smaller size, I couldn't ask for anything more.