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Matching bolt strength is certainly important for critical fasteners. As you have noted, higher strength goes along with higher cost and the manufacturer of whatever it is you are working on will not have used anything more expensive than it needs to be. 8.8 is the basic High-Tensile grade. It...

You are not going to be replacing critical fasteners from a general stock of get-you-out-of-the-mire stuff unless you place a very low value on safety. Assuming you are just looking at metric fasteners, the best approach is probably to walk into a good industrial fastener supplier and get an...

It's difficult to recommend anything without a lot more detail. I did a short "electrical upskilling" course a few months ago, aimed at mechanical maintenance guys to give an introduction to the rudiments of electrical maintenance. It was stuff I've been doing for the last 4 decades or so and...

Any reasonably decent brand will work fine. If there is any possibility at all that you (or anyone you don't actively dislike) will be involved in removing the equipment in the future, drill deep enough that when the time comes, the nuts can come off and the anchors can be driven below flush...

Somewhere "around" 5 (S)CFM/HP should be close enough. There's enough BS and misinformation about compressor throughput that you can't use that number to size the compressor to a task, but a displacement of 5 CFM per HP has been pretty much the norm for decades and displacement gives the...

If you can adapt it to fit a Solberg, that would certainly be my choice. They are very good and really do make a noticeable difference to intake noise, at least on slow-running compressors where intake noise is audible over everything else.

Usually, the static jaw is "just" forward of the edge of the bench. Long items can then be held vertically. When I've bolted vices down in the past, I've clamped a couple of bits of box section steel vertically in both ends of the jaws, put a spacer of about 1/8" or so along the front of the...

Eklind SAE 0.050-5/32 hex drivers turned up yesterday and seem excellent. 1.3-4mm are "Arriving 3 June - 24 October" and 1.5-10mm are "Arriving 5 November".

I've had good results with the BGS circlip pliers in a general industrial maintenance role. I bought them a couple or three years back to get coverage of a good range of sizes at reasonable cost, fully expecting to need to replace the couple of pairs I use the most with better ones (Knipex or...

Looks like a Sevo to me. Sevo are Swedish. I'd not consider it a fractal though.

I'm not sure what mine were/are and they'll be buried in a toolbox somewhere, probably at work. They certainly weren't anything special; just a set of carpenters-type end cutters bought from a real tool shop where I could look at what was available and chose the ones with the flushest cut. The...

Wikipedia lists the spanner sizes for British Association threads. "Spanner" is the British English term for "wrench" in American English.

I have used flush cutting end nippers in the past mainly for cutting small ties (2.5mm wide, 0.1") in tight places: mostly on-site control panel wiring mods. They might be good on 3mm, 1/8" ties too. Once you get to wider ties, they need to be used twice: the first cut at an angle to get the...

10.9 suggests metric threads. 10.9 seems to be a fairly unusual standard in industrial fasteners IME (though it seems more common in automotive fasteners): if something stronger than 8.8 is needed, it has been normal to go straight to 12.9 IME. Running a die down a 10.9 fastener will...

The No-Volt-Release contactor has a momentary pushbutton to start and a momentary pushbutton to stop. Downstream of that, you'd have the fwd/rev drum switch. Normal operation would be to select either forward or reverse on the drum switch, then start with the start button. You'd need to stop...

Back in 1841, there was a need to standardise threaded fasteners and a chap called Joseph Whitworth devised the Whitworth system. It used a 55-degree thread form with rounded crests and roots. The across-the-points dimension of the hex head was twice the nominal thread diameter, making the...

There really isn't a single "best-across-the-board" cordless tool manufacturer. Different manufacturers target different trades and have certain specific tools that are either "better" than the opposition, or only available from the one manufacturer. If you have an application that really needs...

Go with the Vessel set.

I've used Wera, Wiha, Vessel and Facom. All have been good, but more than anything else the thing that makes one "better" than the others is how well they work in your hand. This is personal and isn't something you'll find out from a forum like this. My personal preference is Facom Microtech...

Drilling can be thought of as a constant-power application. This is good with step-pulleysppppppppppppppppplpppppppppppppppppppppp