Doc, I also have the "Corona" "stick-scraper", works wonders, in quick fashion, on garden tools, including machetes, hatchets, tomahawks, axe's, lawnmower blades, when they are just starting to lose an edge. Cheap, easy to carry, and easy to use, make it a simple, valuable, little "fella" to keep around.
With gentleness, finesse, and patience, those carbide scrapers work great for scraping off pieces of valve cover gaskets and head gaskets. I've only used the Lisle brands, and so far so good! Thanks for sharing, Doc!
The best scraper for RTV/Reinzosil/ThreeBond from aluminum engine surfaces is by far best done with a ceramic scrapers. Look up model number KZ4-18 made by Japanese tool company KTC. It works beyond amazing. I deal a lot with assembling motorcycle engines which are all made from aluminum, and this scraper removes sealant like butter, leaving ZERO residue behind, and it doesn't damage the surface at all (even microscopically) like the metal/carbide scrapers do. For old school sheet metal oil pans, sure use a metal scraper, but for precise machine matched aluminum surfaces like engine casings, covers and cylinder heads, nothing beats ceramic...
Doc, the interesting thing about these type of scrapers is that the tungsten has a very fine radius on the scraping edge so as to glide over the deeper surface without damaging it and to 'roll' scrape the debris from the surface above. This works especially well for scraping gaskets off of cylinder heads etc where the excess gasket needs to be removed but the surface needs to be preserved
Check out the Bahco (owned by snap-on) carbide scrapers. One has a curved blade perfect for wood so you don't get edge lines. And there's a smaller one that uses standard triangular carbide cutting bits so you get 3 sides and they're cheap to replace.
Something like this? Bahco 2.5" Carbide Scraper: I see why this is a beloved tool for woodworkers and antique refinishers ruclips.net/video/OTNW2wDZkMo/видео.html
@@lastbesttool Now that you mention it, I remember why I bought that scraper in the first place! I saw your video. Lol. Then I liked it so much I bought the smaller one too.
Can you use these scrapers to get the dirt that gets baked around the edge of head-gasket aluminum mating surfaces? I always have a lot of trouble with that area...
Tool companies should start giving you tools for free to showcase/advertise. The reason I say, is because I always check your videos when I need something to see what your take is. I mean, I watch all of them anyway. But yeah...
I never understood how tungsten carbide was supposed have a hardness of 9. I use them every day for mineral ID and they can't even scratch quartz which has a hardness of 7. Mind you the scribe I use is the general tools tungsten carbide scribe, which is probably the lowest quality tungsten carbide in the world.
Doc, I also have the "Corona" "stick-scraper", works wonders, in quick fashion, on garden tools, including machetes, hatchets, tomahawks, axe's, lawnmower blades, when they are just starting to lose an edge. Cheap, easy to carry, and easy to use, make it a simple, valuable, little "fella" to keep around.
Second this. Works great. Use it for cleaning chips out of knives and use it at work to debur aluminum.
With gentleness, finesse, and patience, those carbide scrapers work great for scraping off pieces of valve cover gaskets and head gaskets. I've only used the Lisle brands, and so far so good! Thanks for sharing, Doc!
The best scraper for RTV/Reinzosil/ThreeBond from aluminum engine surfaces is by far best done with a ceramic scrapers. Look up model number KZ4-18 made by Japanese tool company KTC. It works beyond amazing. I deal a lot with assembling motorcycle engines which are all made from aluminum, and this scraper removes sealant like butter, leaving ZERO residue behind, and it doesn't damage the surface at all (even microscopically) like the metal/carbide scrapers do. For old school sheet metal oil pans, sure use a metal scraper, but for precise machine matched aluminum surfaces like engine casings, covers and cylinder heads, nothing beats ceramic...
Thanks for the tip. I'll check it out.
Doc, the interesting thing about these type of scrapers is that the tungsten has a very fine radius on the scraping edge so as to glide over the deeper surface without damaging it and to 'roll' scrape the debris from the surface above. This works especially well for scraping gaskets off of cylinder heads etc where the excess gasket needs to be removed but the surface needs to be preserved
Great video.
"GREAT CONTENT DOC"THE WORLDS FINEST SINCE 1920 👍
Check out the Bahco (owned by snap-on) carbide scrapers. One has a curved blade perfect for wood so you don't get edge lines. And there's a smaller one that uses standard triangular carbide cutting bits so you get 3 sides and they're cheap to replace.
Something like this?
Bahco 2.5" Carbide Scraper: I see why this is a beloved tool for woodworkers and antique refinishers
ruclips.net/video/OTNW2wDZkMo/видео.html
@@lastbesttool Now that you mention it, I remember why I bought that scraper in the first place! I saw your video. Lol. Then I liked it so much I bought the smaller one too.
I have the Astro carbide scraper
Have you used mueller kueps scrapers?
Diamond hones will sharpen carbide easily
They are great for removing weld spatter
Can you use these scrapers to get the dirt that gets baked around the edge of head-gasket aluminum mating surfaces? I always have a lot of trouble with that area...
Tool companies should start giving you tools for free to showcase/advertise. The reason I say, is because I always check your videos when I need something to see what your take is. I mean, I watch all of them anyway. But yeah...
Hardness always counts!
“I got have more knurling” -Christopher Walken, Saturday Night Live April 8, 2000.
Great skit. Hard to top BOC and cowbell!
I never understood how tungsten carbide was supposed have a hardness of 9. I use them every day for mineral ID and they can't even scratch quartz which has a hardness of 7. Mind you the scribe I use is the general tools tungsten carbide scribe, which is probably the lowest quality tungsten carbide in the world.
No way in God's earth are my knives going anywhere near a carbide sharpener.
Those pull through sharpeners are ass don't even show them on film