Q:Is the screw thread a screw problem or a screw driver?

Determine whether the specifications match, you can first put the knife into the screw slot, gently rotating, and if you do not move, indicating that the specifications are appropriate, if you turn it, it is inappropriate.

Q:How do you maintain the screwdriver?

A screwdriver should choose appropriate according to the tightening or loosening the screw head groove width and groove shape; not using a screwdriver to smaller screwed large screws; cross screwdriver for tightening or loosening the head with a cross slot screw; the angle screwdriver for space limit screw head.

Q:Screwdriver with replaceable screwdriver or screwdriver with fixed head?

If it is household, then you can replace the screwdriver can, because you are not used, do not often change, not loose. Household words, with a word on the cross can be, it is best to buy models smaller, because the family will not have any large screws,

Q:What is the rubber cover of the screwdriver cover?

A screwdriver is mainly used for mechanical, electrical and other industries, usually come into contact with electricity, oil, high temperature and other conditions, modern people have the pursuit of the beauty of appearance, so do the screwdriver handle rubber, CR, MVQ NBR, is an ideal second rubber.

Q:What kind of screwdriver is this? There are also rotating disk, grip in the palm of the hand, screw screws very convenient!

This is the original watch screw driver. Now there are many such screwdrivers. The workmanship and operation are better than yours. You can check the same on the internet. Choose what you like.

Q:The carbon brush of an electric screwdriver is easy to break

Suggest that you can buy brushless screwdriver, no maintenance trouble.

Q:How many kinds of steel are used in high quality screwdriver?

Chrome vanadium steel: Cr-VChrome vanadium is added chromium (Cr) and vanadium (V) alloy tool steel alloy elements, the comprehensive ability of its strength and toughness is better than that of carbon steel, ideal materials as quality tools. Such as wrenches, sockets, screwdrivers, etc.

Q:Screw Ning Mao how to do?

There are several ways in which screws can be removed.Turn all the screws down by turning the electricity.Use a hammer and a flat head to draw all the parts around the screws.If it is flat, you can also use the cutter to knock out the entire screw surface.

Q:What's the difference between a ratchet screwdriver and an ordinary screwdriver? Is it really that good to use?

Each has his merits! The ratchet screwdriver has a corner, not a straight handle screw in narrow space. But the ratchet screw handle is a lever, and the force acting on the end of the screwdriver is much larger than that of the straight shank screwdriver, which means that it saves a lot of effort.

Q:Why do screwdrivers attract small screws?

Since the screwdriver is magnetic, it is like a small magnet, so the screwdriver can attract small screws.