Thick nitrile gloves for mechanics: read the mil first

A 100-count exam box splits on oily tools. A diamond-grip box of 50 is a different glove, and extra thick stays empty until a mil is printed on the box.
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The blue glove opens at the fingertip as you turn a sump plug, and the oil is on your skin before the tool is back in the tray. Thick nitrile gloves for mechanics are what you search after the third exam box does that. On the amazon.co.uk shelf behind our disposable gloves comparison, a 100-count exam box and a diamond-grip box of 50 are different tools. Peter F. read those UK listings, the review notes in the files, and Health and Safety Executive glove guidance. No lab test was run, and no solvent was timed through any of these films.
Prices are the shelf figures from 20 October 2026. Ordinary dirt can live with a thin box. A garage job that keeps splitting fingertips needs a stated thickness, or a plain admission that the box never printed one.
In short
Use a 100-count exam nitrile for dust and light wipes, and expect splits once a spanner loads the finger. The Real Touch black large states 8.5 mil and 0.22 mm, while the Xtremeauto orange large, the top pick when thin nitrile dies on car work, has the longer UK review trail and no mil. Diamond grip helps you hold the tool, and it is not a chemical test.
The exam box is for dirt
A box of 100 blue nitrile is for a short dirty task: a shelf, a bin bag, a few minutes of paint. The by Amazon blue large is £4.41 for 100, about 4 pence a glove, with 4.6 from 9,310 reviews shared with the medium at £5.13. The listing states no thickness, and the notes describe a film that copes until the job gets rough.
PRAIMA black is £5.99 for 100, with a film around 0.1 mm. UK comments still call that black exam film thin on a heavier job. Nitrile stretches as you pull it on, so a tenth of a millimetre can feel sturdy and still open on a knurled fitting.
At about 4 pence a glove you can afford a split, and for dust you should. A cheap box is the right default for ordinary mess and a weak default for a sump plug.
The large disposable gloves comparison is where those cheaper large boxes sit. Retail large is not one hand. A cuff that fights you splits a thin glove before the spanner does. Size up when you are between letters, and wear one box on a real task before a case.
Extra thick without a number
Extra thick disposable gloves stay a slogan until a mil or a millimetre is printed beside the words. The Xtremeauto orange large is the diamond-grip pack of 50 that shows up in that search. It is £11.99, rated 4.7 from 957 UK reviews, about 24 pence a glove. The attributes we used state no mil.
Buyers who had been splitting cheap nitrile say the orange glove lasts longer on tools and cars. The same notes record rips. It is not a figure you can set beside 8 mil gloves on a trade sheet.
"Extra thick, 50 orange" is a shopping line. A trade pack can print 10 mil, a palm of 0.22 mm and a finger of 0.25 mm, with EN ISO 374 beside those figures. Those lines stay on the model that printed them.
Wear one pack on the job that destroyed the blue gloves. If the fingertips still open in the first hour, the unmeasured film is the wrong tool for that task.
The box that states 8.5 mil
The Real Touch black large is the listing where the thickness agrees with itself. The bullet says 8.5 mil and the attribute table says 0.22 mm. One mil is one thousandth of an inch, and that printed pair is close enough to quote without a third decimal. A supplier note that calls about 8.6 mil a 0.22 mm film is the same neighbourhood, not a cut rating.
The pack is 50 gloves at £6.99, about 14 pence a glove, rated 4.5 from 180 UK reviews. Reviewers describe cars, painting and pressure-washer jobs, and a large that runs small at the wrist. A cuff that will not pass the hand tears the glove while you are still pulling it on.
If your usual large is already snug, expect this heavy large to feel smaller. Buy one box and wear it on the job that split the blue gloves. Powder-free and latex-free describe the film. They are not a clinical trial, and they add no minutes against a solvent.
Eight and a half mil is a step up from 0.1 mm exam film, with less feel for clips and the last thread on a drain plug.
Grip is not a breakthrough time
Diamond grip nitrile is a raised texture so an oily spanner has something to bite. Both the orange Xtremeauto and the black Real Touch use it as a handling claim. Smooth exam nitrile skates on a socket once the oil arrives. Texture can steady the tool. It does not say whether brake cleaner or thinners is passing the film.
Health and Safety Executive glove guidance asks for breakthrough data for the substance in front of you. COSHH essentials sheet S101, written for workplaces, points chemical gloves at EN 374 and notes that a permeation test does not cover more than eight hours. Neither file here has an EN ISO 374 type, a chemical list or a time in minutes. Keep any such citation on the trade glove that printed it.
Nitrile gloves for oil, as a title phrase, means the seller expects workshop dirt. The phrase does not mean a safety data sheet has been checked against that film.
If the sheet says the solvent attacks nitrile, a thicker disposable box is the wrong next buy. The rubber gloves comparison is reusable latex for wet chores, and those listings print no EN ISO 374 code. A known latex allergy makes that shelf a poor detour. For a workplace chemical, the sheet and a competent person come first.
Still single use
A glove that survives a brake job still comes off once. Peel it so the oil stays on the outside, and bin it. Washing it and hanging it on a nail puts that dirty face against your skin the next time. The second wear is how contamination gets inside the cuff.
A hose clip or a nicked fingertip will still open 8.5 mil, after more abuse than an exam glove would take. A pale line in the orange film, or a shiny thin spot in the black, means that glove is spent. The box of 50 mechanic gloves is what makes a swap possible. Finishing on a split puts the oil back on your hand.
Heavy fingertips also hide the click of a small connector. If you keep removing the glove to feel a fitting, use a fresh thin glove or a washed bare hand for that step, then wash again. The eight-hour line in HSE guidance is a ceiling on a chemical test, not a full shift in either box.
What to buy before the next job
Match the box to the failure you already have. For ordinary dirt, the by Amazon large at £4.41 is the best value pick, with the shared 4.6 from 9,310 and no mil to invent. Budget a few splits. That is the price of a thin film.
For oily fingertips and a number, the Real Touch at £6.99 for 50 states 8.5 mil and 0.22 mm. Check the cuff on the first wear. Forcing a large that stops at the wrist wastes the mil. One box is the trial. A case comes after the cuff and the job both behave.
For the review trail without a mil, the Xtremeauto orange large at £11.99 for 50 is the top pick when thin nitrile dies on car work: diamond grip, 4.7 from 957, extra thick as a phrase. It does not buy a measurement the page left blank.
Leave both boxes when the safety data sheet asks for published breakthrough data, and follow the sheet for solvents. A qualifying amazon.co.uk purchase can earn us a commission at no extra cost to you. Prices move, so read the mil, the count and the size on the live listing.
Common questions
Why do exam gloves die on a spanner?
What mil is the Xtremeauto orange box?
What mil is The Real Touch?
Is 0.22 mm the same as 8.5 mil?
Does diamond grip replace a chemical test?
Is a black exam box thicker because it is black?
Will a thick glove still rip?

Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.
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