Follow along with your DIY screwdriver kit!
Let me know if you have any other questions.
Heat treating process for 1144 steel screwdrivers: 1. Heat tip of screwdriver until it is glowing red hot. 2. Dunk red hot tip in any type of oil. 3. Check if sufficient hardness has been reached with file. 3. Repeat for other end of screwdriver if wanted. If you choose to temper the screwdriver after hardening (not recommended), you can follow the tempering graph here: https://imgur.com/CM0wkqu
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