Often we use the tool, not knowing that it has some new features. Take such an ordinary tool like metalwork hacksaw. It would seem, what else to think of. However, many work can be done much easier and faster if you use our recommendations. Very difficult, for example, to cut a groove that is only slightly wider than the saw blade. In this case, it makes sense to fix the handsaw two or three paintings, thus in one pass it is possible to groove full profile. If to fix the machine three paintings at a time can be cut three slots. Can be mounted paintings, two on each side — so you can make two wide grooves. Well, if the left to place the saw with the teeth ground off, it will help you to make the slits with a strictly defined step and at a given depth.