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KAIFNT K457 Damaged/Stripped Screw Extractor Bit Kit, Screw Remover Set, Quick-Change 1/4-Inch Hex Shank, 6-Piece
Remove broken and damaged screws and bolts in two easy steps. The burnishing drill bit to prepare the screw or bolt for removal and the threaded screw bit to grip and extract them when used with impact drivers or drills. Removes many types of screws up to 4 inches length including hex, Phillips, and square drive and bolts up to 3/8-inch. Each of the bits are different widths to handle a different range of screw and bolt sizes.
Set Includes
• 3-piece 1/4-inch 50mm specially designed drill out bits:
2mm (5/64")
3.2mm (1/8")
4.2mm (5/32")
• 3-piece 1/4-inch 50mm screw extractor bits:
No.1 (3 - 5mm) (1/8 - 3/16")
No.2 (6 - 10mm) (1/4 - 3/8")
No.3 (12 - 14mm) (1/2 - 9/16")
• Bit Holder
mark a
Reviewed in the United States on June 27, 2025
Why did you pick this product vs others?:Cost and positive reviews
Dave M
Reviewed in the United States on June 13, 2025
Usable, small
S. B. Wa. State..
Reviewed in the United States on May 19, 2025
Most people don't realize about these special safety bits. They look like torx bits with hole in the middle. Called tamper proof bits.Actually called torx plus / pantelobe 5 point bits . Torx has 6 points .Every diy or mechanic should have these in tool box for special tamper proof screws and most maf sensor replacement require this bit or most modern cars have these to prevent home mechanics from changing things . For under $10. These will work on many parts and cars and save you hundreds of dollars . Maf sensor alone is $200 part.With these you can remove it from the housing ( Bosch) mostly and clean MAF or map sensor for under $10 vs paying mechanic hundreds to replace or clean .Just follow instructions on crc MAF sensor cleaner spray can . $9 .. + these bits . 👍👍
bill english
Reviewed in the United States on March 6, 2025
This is what you need to remove a maf...works great
Gravyman104
Reviewed in Canada on January 17, 2025
The. It were made out of very good quality steel. Very strong and work perfect. They did what I needed them for on my special engine bolts.
Mo
Reviewed in the United States on April 27, 2025
Doesn't work. Initial review is that I tried many of these bits and they were unable to do the job. I'll keep trying but I'd avoid this product.
Bryan
Reviewed in the United States on December 17, 2024
Perfect
Mauricio Rodriguez Alvarez
Reviewed in Mexico on April 13, 2024
Llegó a tiempo y en perfecto estado. Son de muy buena calidad. Funcionaron con precisión en los tornillos que necesitaba quitar en una bocina Bluetooth Bose.
Johan van der Walt
Reviewed in Australia on February 17, 2023
Used this to remove two screws from the back of my Dell Inspiron laptop.The shallow screws were secured with Loctite (or similar thread adhesive). Failed unscrewing attempts resulted in damaged/stripped heads.The after some careful work, the reverse drill bit unscrewed both screws without the need for the additional bit.The tool was perfect for my application.
Hermann Hochfeld
Reviewed in Germany on December 17, 2023
Ok
Michael J Robertson
Reviewed in the United States on October 8, 2023
Just what I needed, at a good price. Five-star security torx bits were impossible to find locally, even at Lowe's and Harbor Freight. Thank goodness for Amazon!Of course it would be REALLY nice is product manufacturers didn't build equipment with a THOUSAND different fasteners, making us buy all sorts of bits. Hopefully this will be the last time I ever buy bits, as I now own every bit known to man. 😆One small complaint about these, mine are NOT marked with their individual sizes. Not on the bit holder, nor on the bits themselves. No big deal really, I guess I can use my Dremel to engrave the sizes.
CarefulConsumer
Reviewed in the United States on April 9, 2023
I so like that, with the largest phillips bit, I could use a ratchet wrench to remove screws, rather than a screwdriver.A neighbor discarded what you see in the picture, and I thought I could dissasemble it and use the wooden pieces elsewhere.Yet, to use a screwdriver would be too hard on my sometimes arthritic hand. So I bought this and easily removed the screws with a ratchet wrench.Being given two of the size I needed was helpful. Thank you. It is a well thought out set of bits. Good quality too.I did have some sockets, from the same manufacturer, to hold the bit. And then the socket I put on my ratchet wrench.There is a piece in this kit I haven't explored. It might have the same purpose as the sockets I made use of today. I just don't know.Well worth the money.
CARLOS
Reviewed in Mexico on April 1, 2023
Me sirvió para una bocina bose soundlink plus II, es como en las imágenes
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