Which Screwdriver Bit Material is Best? S2 vs CR-V vs HSS – Explained Simply

❓ Q1: Why does screwdriver bit material matter?

✅ The material determines:

• How much torque it can handle (will it snap or not)

• Whether it wears down quickly or slips

• If it’s safe for use with power tools

Choosing the wrong material may lead to stripped screws, broken bits, or tool damage.

❓ Q2: What are the common screwdriver bit materials?

Here are 5 popular materials and their characteristics:

❓ Q3: Which material is the most recommended?

👉 S2 Tool Steel is the top choice because it:

• Balances hardness and toughness

• Resists twisting under high torque

• Doesn’t slip easily like CR-V

• Isn’t brittle like HSS

If you're using electric screwdrivers, impact drivers, or assembling equipment, S2 is your go-to.

❓ Q4: How can I tell what material a bit is made of?

✅ Easy ways to identify:

• Look for markings like “S2”, “CR-V”, or “HSS” on the shaft

• Color:

  • S2: Dark gray or black phosphate

  • CR-V: Light gray

  • HSS: Shiny silver

• Price: S2 is usually more expensive than CR-V

If your T30 bit slips after just 2 uses, it’s probably CR-V – time to upgrade!

✅ Conclusion

Choosing the right bit material saves time, money, and frustration.
For durability, performance, and professional use – S2 Tool Steel is the best pick.