Screwdriver tool use matters needing attention:

1. when use, not the available screwdriver works as the crowbar or the chisel use.

2. should scour the Screwdriver hilt and the mouth end greasy dirt first before the use, in order to avoid works time slides to have the accident, after the use, must clean cleanly.

3. the correct method is grasps by the right hand holds the screwdriver, the control resists the handle end, lets the screw cutting edge end and the bolt or the bolt notch is at vertical tallies the condition.

4. when starts twists the pine or screws tight finally, after should make an effort contracts the screwdriver, again to use the skill strength to reverse the screwdriver; After the bolt becomes less crowded, then causes the control light pressure screw hilt, with the thumb, the middle finger and the index finger rotates the screwdriver fast.

5. selects the screw cutting edge end should tallies with on the bolt or bolt's notch. If the mouth end is too thin easily to break off, too thick then cannot insert in completely the trough, easy to cause the cutting edge or the bolt notch damage.

6. the screwdriver is one kind uses in screwing tight either twisting the pine to have the notch bolt or bolt's hand uses the tool. Has in-line screwdriver, the cruciform screwdriver, the bias screwdriver and so on several kinds.