These are probably tool steel blades and casting for the body. Both of which are done as well or better than you would expect at this price. My package included the file/rasp which really made the price unbelievable. However, adjusting these if very, very fiddly and if you are not familiar with using a spoke shave it may frustrate you to the point of giving up. But don't, if you stick with it you will eventually figure it out. Keep mind on where the cutting blade is at all times when adjusting though because the design requires flipping over several times to check the blade alignment. The blades are "sharp" out of the box but depending on your desires and ability they need tuning up. The sole or bottom of the shave is not dead flat and needs to be lapped on a flat plate, the blades need to be honed on fine stone or diamond plate and stropped. After doing this these very cheap shaves work very well. I'm pretty happy with mine.
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