Do not throw away old bits from the screwdriver. They can be restored

Over time, absolutely any bits are deteriorating, especially those intended for use with Phillips screws and self-tapping screws. The working part of the bit, which is directly in contact with the self-tapping grinds over time and most people simply throw away and buy new ones, although there are quite a few ways to restore them. Let us consider the most simple and effective at the same time.

Take a rectangular iron bar and fix it in a vise. On the plane of the bar paste the usual fine-grained sandpaper. Now it is small left. Insert the bit into the screwdriver and small turns at an angle to sharpen their start on nazhdachku. The main thing do not drive a screwdriver on the plane forward - backward -vlevo - right. Bits should be twisted on the ground and only come into contact with sandpaper without strong pressure.

Thus after 5-6 such manipulations spoiled angles bits will find its desired shape. After that, the tip of the bits will be very sharp and it must necessarily dull, or bits will scroll in the screw. To do this, you can use an ordinary emery stone.

Many will say that sharpen the bit can be on the same stone, but I can tell you that it is not desirable to do. Firstly, if we use the stone, one wrong move or severe depression can permanently damage the bat, and then it will hardly revive. In - the second, I can say from my own experience, that the stones are often cracked by such manipulations.