I used it to open a countersink of constant depth into a large steel plate. As the bench drill can not take depth, it became useful as a guide for a hand type drill. Strictly speaking, I want a guide stopper for depth adjustment on both sides. There seems to be even more expensive models so it may be better for those who examined there for accuracy requirements. Even here is it possible to use it as it is for cost performance? Well, in any case it seems to be the type of product expected to be used in woodworking in general for this type, so it is like it is in the case of ironworks as it is.
I bought it because the price was cheap. It is feeling that there is insufficient rigidity as a whole, and there is somewhat uneasy feeling when using it and it is aimed at accurate drilling but it is a feeling that it is swinging and it is a feeling that accurate drilling has not been done. Especially feeling of anxiety will increase, such as hard things that need to exert a little force.