Twist drill is the most commonly used cutting tool, twist drill to sharpen sharp, should pay attention to some points:Twist drill bit is a commonly used drilling tool for machining. Although the structure is simple, it is not an easy thing ···

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 ···

What is a reaming drillDrill and reaming drill is the same thing, but the role is different, are the use of cutting edge drilling; The drill drill expands the bottom hole drilled by the drill bit.What are the specifications and characterist···

First, what is the reason why the impact drill does not impactImpact drill is a commonly used drilling tool, the use of the internal shaft of the gear beat each other to achieve impact, in the process of use, sometimes there will be impact ···