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Interesting Knowledge

News about Ha Thanh

09:58:14 - 29/04/2026

Structure and Operating Principle of Broken Screw Extractors

The structure and operating principle of broken screw extractors enable effective removal of broken bolts. Learn about the components, reverse threading mechanism, and how they work to ensure proper use in mechanical repairs.

09:38:50 - 29/04/2026

Common Mistakes When Removing Broken Bolts and How to Fix Them

Common mistakes when removing broken bolts include off-center drilling, using excessive force, or choosing the wrong tools. Learn the causes and effective solutions to protect threads and improve repair accuracy.

15:53:40 - 18/03/2026

How to Protect Metal Tools from Rusting

How to protect metal tools from rusting: keep them in a dry, ventilated place, avoid contact with water. Clean them after use, use anti-rust oil or desiccant bags, and store them separately to prolong their lifespan and maintain work efficiency.