Drill use and maintenance:1, the drill should be installed in a special packaging box to avoid vibration collision with each other.2, when in use, remove the drill from the packaging box should be installed in the spring clamp of the spindl···

First, what is the structure of rock drillElectric rock drill is an electric tool used for drilling in rock mass. That is, the drill pipe and drill bit are rotated by the motor through the variable speed mechanism, and are pushed manually o···

When it comes to how to use a charging drill, I believe that carpentry and decoration will be used. But in life, we are not engaged in woodworking, decoration, and it is possible to use a hand drillWait, such as: home bought a mirror needs ···

The working principle and type of electric drillHow an electric drill worksThe motor rotor of the electromagnetic rotary or electromagnetic reciprocating small-capacity motor does the magnetic field cutting work operation, and drives the op···

Drill specifications What electric drill drill bit classification complete1. Drill specificationsA drill is a tool that rotates and has a cutting ability at the head end. It is generally milled or rolled with carbon steel SK, or high-speed ···

The drill should be packed in a special packaging box to avoid vibration collision with each other.When in use, remove the drill from the box should be immediately installed in the spindle spring clamp or automatic change of the drill tool ···

Slect drill bits according to different applications:Twist drill general twist drill made of high-speed steel; A deep hole drill usually refers to a tool for machining holes with a ratio of hole depth to aperture greater than 6. Commonly us···

According to the structure classification can be divided intoThe head, body and shank of the integrated bit are made of the same material.The top of the end welded bit is welded by carbide.Incompatible by diamond classification can be divid···