Alloy bits and cobalt-containing bits each have their advantages, and which one is better depends on the specific application requirements and equipment conditions.

Alloy bits, such as carbide bits, have the following characteristics:

High hardness, strong wear resistance, suitable for processing heat-treated steel parts and difficult to process materials.

High hardness, wear resistance, strength and toughness, heat resistance, corrosion resistance, even at 500 ° C temperature is basically unchanged, at 1000 ° C still has a high hardness.

Suitable for automation equipment, high-speed and stable processing environment, because of its good stability, but the price is high.

Cobalt drill bits (high-speed steel bits) have the following characteristics:

The material is a complex composition of alloy steel, containing tungsten, molybdenum, chromium, vanadium, cobalt and other carbide forming elements, the total amount of alloying elements up to about 10 ~ 25%.

It can still maintain high hardness (HRC can be above 60) under the condition of high heat generated by high-speed cutting, which is suitable for processing such as environmentally friendly iron, aluminum, copper and other materials.

Moderate price, good toughness, not afraid of instability, even if wear but not directly broken, suitable for bench drilling manual drilling type processing environment.

In SUMMARY:

If high hardness materials need to be processed or used in stable automation equipment, alloy drill bits are a better choice because they provide higher hardness and wear resistance.

For the processing environment is more flexible, such as bench drill manual drilling type, or need to process environmentally friendly iron, aluminum, copper and other materials, cobalt drill (high-speed steel drill) because of its moderate price, good toughness characteristics and more suitable.

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