Tips for purchasing down-the-hole drill bits
Choosing the right drill bit is very important to the quality and efficiency of drilling. Here are some down-the-hole drill bit selection tips:
Material: Different drill bits are suitable for different types of materials. Generally speaking, the material of the drill bit should be harder than the drill bit. For example, tungsten steel drill bits are suitable for hard materials, while high-speed steel drill bits are suitable for soft materials.
Diameter and Length: The diameter and depth of the drill hole determines the drill hole size that needs to be selected. Large diameter drill bits are suitable for large hole diameters, and small diameter drill bits are suitable for small hole diameters.
Tooth profile: Tooth profile helps to improve the cutting efficiency of the drill bit. Different tooth profiles are suitable for different materials and workpieces. For hard materials such as steel, it is recommended to use tungsten steel drill bits; for soft materials such as plastics, it is recommended to use multi-tooth high-speed steel drill bits.
Corners: The corners of a drill determine the cutting ability of the drill. Drill bits with large corners are suitable for cutting soft materials, and drill bits with small corners are suitable for cutting hard materials.
Coating: Some down-the-hole drill bits have coatings, such as titanium coatings, that can improve the hardness and wear resistance of the drill bit. The choice of coating should be determined based on the drilling material and the desired cutting effect.
Cutting speed: According to the drilling material and drill bit type, choose the appropriate cutting speed to improve the service life and efficiency of the drill bit. Usage occasions: According to drilling needs and usage occasions, select the appropriate drill bit type, such as hand-held drills and electric drills.
