EFFICERE 40-Piece Premium Tap and Die Set, Metric Screw Threads M3, M4, M5, M6, M7, M8, M10, M12, Both Coarse and Fine Types | Essential Threading Tool Kit with Complete Handles, Accessories and Case

Muy buena herramienta, para trabajar en cuerdas de turecas y tornillos

Poor quality and storage box, I return it back.

I recently purchased this product and was extremely disappointed with the quality of the product. The taps and dies didn't work on a soft metal even at the first attempt, making it difficult to create threads, and several of them broke while in use. Overall, I would not recommend this product to anyone and I am extremely disappointed with my purchase.

I thought it was going to be another cheapy junk set like I had just returned from Harbor Freight that I could not even tap and already tapped hole in ABS plastic. what garbage they have. This set is really nice and all the size's are etched into each piece to you know what size you are looking for. Not like the other company that it wiped right off and most did not have them etched. If you don't know what the size is, then what good are they. They were all organized nicely. Worked quickly and perfectly on ABS plastic. Thanks so much. 😍😍

箱は各ピースがはまり込む構造ではなく、閉めても傾けると中身がバラバラになる。 タップを健康なネジ穴に通すとソコソコの抵抗があり、切り粉も出てきた。ダイスも切れ味がイマイチ。不具合にまでは至らないのでまあ良しとする