Introduction of electric drill bit

Electric drill bit is an important accessory for drilling on electric drill, according to different use needs, electric drill bit has a variety of types and specifications. The following is a detailed introduction to the drill bit:

First, the type of electric drill bit

Twist drill

Application: Twist drill is the most widely used hole processing tool, suitable for drilling a variety of materials, such as metal, wood and so on.

Structure: twist drill is mainly composed of the working part and the handle, the working part has two spiral grooves, shaped like twist.

Diameter range: The diameter range is usually 0.25 to 80 mm.

Flat drill

Cutting part: The cutting part of the flat drill is shovel shaped, simple structure and low manufacturing cost.

Application: The cutting fluid is easily imported into the hole, but the cutting and chip removal performance is poor. There are two kinds of flat drill and assembly type, the whole type is mainly used for drilling the diameter of 0.03 ~ 0.5 mm microholes; The prefabricated flat drill blade is replaceable and can be internally cooled, and is mainly used for drilling large holes with a diameter of 25 to 500 mm.

Deep hole drill

Definition: A deep hole drill usually refers to a tool for machining holes with a ratio of hole depth to aperture greater than 6.

Type: Commonly used gun drill, BTA deep hole drill, jet drill, DF deep hole drill and so on. Nesting drill is also commonly used for deep hole machining.

reamer

Features: The reaming drill has 3 to 4 teeth, and its rigidity is better than the twist drill.

Application: Used to enlarge existing holes and improve machining accuracy and finish.

countersink

Features: The countersink has more teeth, and the hole end is processed into the desired shape by forming method.

Application: Used for processing countersunk hole of various countersunk screw, or cutting the outer end face of the hole.

Second, the use of electric drill bits precautions

Select the right drill bit: Select the right drill bit according to the material and the size of the hole to ensure the efficiency and quality of the drilling.

Secure installation: When installing the drill bit, ensure that the drill bit and the electric drill chuck are tight to prevent the drill bit from loosening or falling off during the drilling process.

Control strength: When drilling with electric drill, it is necessary to control strength and speed to avoid excessive force or too fast speed leading to drill bit damage or material damage.

Safe operation: When operating the drill, wear protective glasses and gloves and other protective equipment to ensure personal safety.

Iii. Summary

Electric drill bit is an indispensable part of electric drill, according to different needs to choose the right bit to improve the efficiency and quality of drilling is very important. At the same time, the use of electric drill bits should also pay attention to safe operation and use precautions to ensure personal safety and equipment integrity.