This morning at the Sunday flea market, I bought a scan for 3 yuan. When I buy things at a flea market, in addition to getting cheaper, walking and relaxing, I can also buy things that are currently out of stock. Good quality.
The reamer has a straight edge and is suitable for carving. It cuts through iron like dirt and is much harder than conventional turning knives and white steel knives. This one has a diameter of 10mm and a length of more than ten centimeters. It is combined with a tap and has a total length of more than twenty centimeters. When welding, it is just right for a carving knife.
Please pay attention to the key points below. According to practical experience, if the handle of such a metalworking tool looks like the picture shows, and the situation of "thick and thin" appears, it proves that the handle over the thin handle is alloy .For steel, of course, the longer the thin handle, the better.
This type of thin handle usually has lines and will slip when polished with an iron file, which is harder than an iron file. There is no cutting iron when grinding, but it can only make it smoother and shinier. . All high hardness alloy steels will slide when they are cut, cut and ground against each other. This is one way to prove that they are alloy steels.
Finally, there is also an iron plug, which was also purchased to make a carving knife. You can also read my previous articles about carving knives, and if you want to exchange experiences and suggestions, then write in the comments.
Finally, let me talk about the skills of sharpening a carving knife, that is, the inclined planes of the two polished carving knives should not be convex, but should be flat or concave. That is, the grinding surface of the grinding wheel cannot be concave, but must be convex, the only way to polish a useful carving knife.
Because if the two inclined planes of the carving knife are slightly convex and protruding, then the front horizontal blade will form a forward convex crescent shape, so it will not be possible to manually polish and trim the two blades. the cutting of the filling mainly relies on these two angles, and it is almost impossible to grind the belly by hand.
Therefore, the two inclined planes must be flat or slightly concave, which requires the grinding wheel to be slightly convex, that is, when using the grinding wheel, you must pay attention to the technique, reasonably distribute and use it, and maintain the correct shape of the grinding wheel.