Akozon Parallelblock, Stahl, einstellbare Größe Parallelblock-Messset von 3/8~2-1 / 4in, 6-tlg Ersatz Zubehörteil

I received this product direct from Amazon. The parallels are of 2 halves that are meant to slide on each other to set the height. There are two locking screws to hold them in the position they are required to be. However, the locking screws do not lock the slider and it is impossible to make them work as they are designed to do. This is due to poor machining and slackness in the sliders. This makes the product useless and I'm seeking a full refund from the seller.

The blue outer casing was broken in several places, possibly in transport due to weak freight protection box. Cold temperatures at the freight terminals might have been a part of this but it probably wouldn't have happened with better packaging.But the parallell blocks are fine and the seller compensated me for the broken casing and that's why I'm giving the top grade despite that the blue casing was broken.The parallells are very good as just parallells when milling smaller parts etc but they are also good when measuring, you can measure internal distances and measure them with an outside micrometer.All in all, a good product but it must be transported in a real box and not just Amazons bubble wrap plastics.And a good seller that stands up for his mistakes, a seller that I can highly recommend. Thumbs up!