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Chain Vise Grips are a useful, well made tool. Mine are genuine, not Asian copies. I've got one pair that I added an extra length of chain for torturing larger things ;-) Roy

Vise Grip is not same without the name Vise Grip on side. Back 1970's there a lot cheap Vise Grip copies and in a shop they would not not last a week. So all shops would only buy the name brand. In

I don't have that kind of chain wrench, but I have the kind that's a chain Vise Grip (misusing that trademark too). But what does that matter? Roy, have you ever in your whole life asked for a

There are some that have an extension shaped for internal threads: < https://www.hdchasen.com/internal-and-external-thread-repair-file > When I bought one in France, the shopkeeper tried dissuade me

"Crescent" is a brand name, not really a generic name for an, "adjustable wrench." < https://en.wikipedia.org/wiki/Adjustable_spanner > Another useful implement of destruction for recalcitrant

Cool video!

Cryogenic bits - the Norseman CN-Tech bits are the ones I am most familiar with, The bits get a nitride coating and then cooled to -300F. They become harder and stronger and less brittle. For

Do you know if the engine runs? The second download is great Now if I could read German and use monkey marks I great shape. A red pen will fix the monkey ? marks and good guess on German writing

??? Some real scientific info on cryogenic drill bits . https://www.youtube.com/watch?v=hAxi5YXTjEk ??? animal

Just saw the second dow load . Viewing now. Thank you Dave

Thank you both They both look like the same engine a 1939 reprint of Popular Mechanics. Witch is only draw I have. Dave

I could tell mush difference in Cobalt or HSS. Use? both Cobalt and HSS Dave

Never seen or used cryogenic bits , what makes them better ? When I buy tool blanks I usually buy plain HSS & then buy a couple in the same sizes in Cobalt . I read somewere that ya should wear a

My approach to the bits question has been “buy the cheap sets, then replace the ones you use enough to have to resharpen with good, expensive ones.”

Amen to sharp bits. I'm a fan of cobalt and cryogenic bits as well...

I'm a fan of cheap tools but expensive (for me) sharp bits. Seems to work better than the other way round. Tony

There’s this one: https://books.google.com/books?id=e9wDAAAAMBAJ&pg=PA927&source=gbs_toc_r&cad=2#v=onepage&q&f=false I made a pdf of the article, attached ? I’ve got quite a collection of

I have a 24” pipe wrench (not even the biggest HF sells! They go up to 36") for the same reason: it was worth the cost to take off that one fitting I needed undone that one time, because it beat

here's a

Looking for photo and drawings on Flame / Candle Engine. My next project wis going to a flame ? engine and looking for data. Dave