What you are getting
Eleven Torx extractors: T10, T15, T20, T25, T27, T30, T40 on a 1/4-inch shank, 50 mm long, and T45, T50, T55 on a 10 × 38 mm shank, plus a 1/2-inch drive to 10 mm bit adapter. High-grade silicon alloy steel, heat-treated, chrome-plated. 318 g, 165 × 83 × 38 mm. $25.70.
It is the only Torx set on this shelf
Every other item here addresses a hex fastener — a rounded bolt head, a snapped stud, a stripped nut. This addresses the star, and a stripped Torx is a different failure.
A Torx socket fails by the points of the star rounding off from the inside, which leaves a hole with six shallow lobes. A hex extractor has nothing to grip there: there is no outside to go over and nothing to drill into without destroying what is left.
Torx is now most of the fastening on a modern car — interior trim, brake calipers, engine covers, seat rails — and the shelf’s introduction never mentions it, because the European sets published here do not cover it either. So this set fills a real gap on the shelf rather than competing on it.
And it works without drilling, which the shelf says is the whole difficulty
“No need to drill holes if the screw holes hasn’t been enlarged or fully rounded, just use the tools directly.”
And again: “The twist end design can extract the damaged Torx screws which haven’t been rounded fully. Users can use the tools directly without drilling holes on the screws.”
The shelf’s introduction: “The most useful thing a set includes is not a tool at all: a drill size table, since the pilot hole decides everything.” And the buying advice: “an off-center pilot hole turns a bolt extraction into a thread repair.”
K Tool’s answer is to not drill at all. The twist end is a tapered spiral-fluted tip hammered into the damaged star, which bites on the remains of the lobes and turns them out — the same mechanism as a spiral extractor, applied to a hole that already exists.
The condition is stated twice and it is the honest part: if the star has been fully rounded out, this will not work. Caught early, nothing on this shelf is quicker; caught late, there is no tool here for it.
Eleven sizes, named as Torx numbers, which is the only sizing that makes sense
T10 to T55 is the whole useful automotive range. T10 to T30 is trim, electronics and interior; T40 to T55 is brakes, suspension and drivetrain.
That is also why there is no drill size table to want: a Torx extractor is chosen by the T-number of the screw, which is stamped on the driver that failed. Nothing has to be measured.
Two shank sizes split the set:
| Sizes | Shank | Driven by |
|---|
| T10–T40 | 1/4 in hex, 50 mm (1.97 in) | a bit holder, a drill, a 1/4 in ratchet |
| T45–T55 | 10 × 38 mm (0.39 × 1.50 in) | the included 1/2 in drive adapter |
The 1/2-inch drive adapter is what makes the three largest usable: a T55 caliper bolt needs a breaker bar, and a 1/4-inch hex shank would twist before the bolt moved.
Three hundred and eighteen grams, the lightest weight published here
| Item | Weight |
|---|
| TMAX wheel lock key | — |
| This set | 318 g (11.2 oz) |
| VEVOR 16 pcs | 866 g (30.5 oz) |
| CRENGYBL 26 pcs | 1,179 g (41.6 oz) |
165 × 83 × 38 mm is a case that goes in a glovebox or a trim-removal kit, which suits what it is for — most stripped Torx screws are found during a job, not before one.
But silicon alloy steel is a vague grade, and chrome plating is an odd choice
“Made from high grade silicon alloy steel and heat-treated.” And: “All contents are chrome-plated which provides ultimate anti-rust capacity.”
The shelf asks for “stated hardness”, and the reason is its opening warning: “a broken extractor is harder to remove than the bolt was — the steel is deliberately hard, which also makes it brittle.” No HRC figure is published here, and the alloy is named as “silicon”, which is a family rather than a grade.
Of the twelve items on this shelf, four publish a hardness — from 50–55 HRC on the VEVOR set up to 63–65 on the published YURINWOO set. On a tool hammered into a hole and then twisted, this is the one number you would want, and on a T10 tip — about 2.7 mm (0.11 in) across — it matters more than on anything else on the shelf.
Chrome plating on an extractor is worth a second thought. Chrome is hard and smooth; the XEWEA set here uses a manganese phosphate conversion coating instead, which is the finish used on taps and dies because it holds oil and does not flake under load. A plating on a tip driven into a hole can chip.
What is not published
No hardness. No tip taper or insertion depth. No torque limit, on three sizes sold with a 1/2-inch drive adapter. No warranty. No statement of what to do if the star is fully rounded — only that this tool will not do it.
At $25.70 it covers the one fastener nothing else on this shelf can touch, and only while there is still something to bite.
Availability
On sale at around $26 on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 6 October 2026. The live price is at the top of the page.
