They're still used in general aviation shops. Reciprocating aircraft engine spark plugs are pretty expensive. $75+ apiece. Each cylinder has two plugs.
GA planes run low-lead fuel, so they foul a bit more than unleaded gas engines-- especially if the plugs aren't in the proper heat range.
I have a set of these. I've used the 1/2 extensively for about 9 or 10 months and the others on and off.
It is kind of a pain having to flip the wrench over if you're not paying attention, but it's really not that big of a deal.
They don't lock, true, but the joints are pretty stiff. Not...
Isn't the whole Snap-On appeal "You buy one, it's the last one you'll buy; last you the rest of forever blah blah."
And when it doesn't live up to that promise, I guess the owner is supposed to go looking through his receipts to find the corresponding one for the problem child? Please.
For...
Think about the supply chain: how much are SO's tools are marked up each time they go from one element of the chain to the next?
How can they offer such a crazy discount to students in hopes of gaining life-long customers?
They're marking their products up quite a lot. Which means that if you...