News

1. Hardness

S2 alloy steel has a higher hardness, generally reaching HRC58-62, which makes S2 bits have better wear resistance. CRV chrome vanadium steel has a lower hardness, about HRC48-52, and its wear resistance is relatively poorer than S2.

2. Toughness

S2 alloy steel has better toughness, which means that S2 bits are less likely to break when subjected to impact or torsion. CRV chrome vanadium steel has poor toughness and is more brittle, and is more likely to break when subjected to greater impact or torsion.

3. Wear resistance

Due to its high hardness, S2 bits have better wear resistance than CRV bits, which helps maintain sharpness and tightening ability. CRV bits have relatively low wear resistance and may be more suitable for gentle use scenarios.

4. Corrosion resistance

S2 alloy steel has good corrosion resistance, but it still needs to be maintained in high humidity environments. CRV chrome vanadium steel also has good corrosion resistance, but may rust more easily than S2 in humid environments.

5. Application

S2 alloy steel is particularly suitable for making durable bits for industrial or frequently used environments due to its impact and vibration resistance. CRV chrome vanadium steel is often used to make cost-effective consumer hand tools such as ordinary wrenches and screwdrivers due to its low cost and good performance.

Summary
When choosing a bit, if it is industrial or requires work with high torque and impact, it is recommended to choose S2 bits. But for home or occasional use, CRV bits are more cost-effective and can meet basic needs.
Regardless of the material of the bit, it should be cleaned and properly stored after use to extend its service life.