Q:How to change the electric hammer drill chuck

Chuck is divided into: ER chuck, pneumatic chuck, spring collet, engraving machine chuck, tightening chuck, and so on.

Q:Drill an electric hole first, and then press the screw on the inside of the thread. What's the name of the wire tool?

Hand drill in metal, wood, plastic, and other materials (concrete, tile, borehole structure, sediment except) switch wire tool called silk attack, in order to use the plate on the screw hole, can choose the screw, drill (hole) diameter than the screw diameter is small, otherwise there is no space for tapping

Q:Wall drilling, in addition to using an electric drill, there is nothing simple, easy to operate the way no?

Cement wall drilling:This small hole is less than 30mm, using impact drill, see big hole, big trumpet, percussion drill and drills of different diameters.This large 50mm about to use the core machine, according to the size of the core machine of various specifications and depth.

Q:Can 1 steel plates be drilled with a portable hand drill?

Opponent drills, 1cm thickness is not a problem, the problem is how much drilling holes, larger than 6.5mm holes, drilling may have some difficulties.Flashlight drill chuck has a variety of specifications, commonly used small drill, drill chuck can only pinch less than 6.5mm, turn over, will be reformed. Price of about 120-150 yuan, the quality of a little less than 60 yuan can also buy.If it is household, it is recommended that you buy an impact flashlight drill (dual-use), which can also be used for building drilling. The commonly used small hand drill with impact the price of 150 yuan (brand), a price of 90 yuan.

Q:Does the spark of this cut or an electric drill splash onto the body and the eye?

If your skin is thick, it will splash on the body, the eye is still trying to protect, and once it does not matter, and several times will hurt your eyes.

Q:Is there any understanding of the use of flashlights?

Hand drill: the minimum power, the scope is limited to the use and when a electric screwdriver drill for wood, do not have much practical value.

Q:What's the power of an electric drill that gets into a concrete wall?

A drill, the national product is that the mandatory product certification Commission regulations, so at the time of purchase, should first check the tools whether the 3C mark, the general method for inspection, whether in packaging tools or tools of the nameplate on the 3C logo, if this is still in doubt (as an electric drill manufacturers not through the annual review supervision, CNCA will suspend or revoke the certificate), available on the CNCA website, access to the tools of the 3C certificate is valid.Two, the general purchase of electric drills, should choose a better reputation, more influential large companies, because these large companies have strong technical strength, strict quality control, after-sales service is also more standardized. Users with strong purchasing power can also purchase some international brand tools.

Q:Can the motor on the electric drill be changed into a generator?

On the efficiency of well naturally than the original motor state is low, this is because the internal resistance of the power supply will be higher than the professional electric spark generator, and the commutator also makes as generator load capability.

Q:How to repair an electric drill

The first kind of fault, the motor can not work normally, should open the drill body, check whether the power line or because the fuse burned off, if there is such a problem, should replace the fuse or power line immediately; there may be due to the armature winding or stator winding is damaged, it must be replaced or repaired and may be due to winding; bearing rust, rust treatment should be carried out for bearing grease or.

Q:The difference between the electric hammer and drill.

The drill operation is stable, operation of large vibration hammer. Something that is not too hard, such as metal, wood, plastic, etc.. The electric hammer drill are hard or easy to hurt a bit, drilling is generally like concrete.