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I have over the years tried a number of various thread extraction tools, the only 100% reliable one has been spark erosion, but very expensive and not readily available. These Teng extraction tools are a unique design and have proved to be exceptionally good. I have removed a number of broken studs from both aluminium and steel, in itself a good recommendation. They do not look particularly well finished but they are very effective. I would recommend them to any engineer as a good addition to the tool kit.
Verified purchase: Yes | Condition: New
Had to extract a broken spark plug , bought these as recommended by you tube videos , broke off in plug hole . Now if I was being brutal I wouldn't moan but I was using a standard 1/4 ratchet. Broke way too easily considering what it's designed for.
Verified purchase: Yes | Condition: New
I had a couple of bolts stuck in my motorbike fairing, tried everything to free them, cut a groove in it to use a flat blade, tried a gallon of wd40, tried grips nothing worked. Had a wire for £45 to remove each bolt, so I invested in these little beauties. I strongly recommend a set of cobolt to hss drill bits to go with these. It was simple. Drill the centre of the bolt or, starting with the smallest bit and worked out to around 4mm. Trapped in the correct size Stud remove with a couple of gentle taps, grabbed the end with an adjustable spanner and put the bolts came. While Jon took under 10 minutes for both bolts. These are simply a must, and paid for themselves with their first use, so I would give them 10 stars if I could. Well worth the investment for an inexpensive solution.
Verified purchase: Yes | Condition: New
Excellent bite and quality. Much better than cheapo extractors which can snap off in use and leave a real problem. Wheel off. Centre punched stud remnant. A hard nail will do. Screwfix extreme cobalt bits 2mm first, then 4mm then 6.5mm. Use cutting oil or whatever you have. Keep drill square and drill right through the stud. Knocked 2nd biggest extractor into holed stud with hammer until tight. Wrench onto extractor. Tap wrench with hammer to turn and shock nut out. Worked first time! A bit surprised how easy it was. Extractor bites into metalwork nicely. Hardly a mark on it after use. Well worth the money for occasional use. Best in this price bracket.
Verified purchase: Yes | Condition: New
Used them on plant machines did the job well no problems
Verified purchase: Yes | Condition: New
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