Screwdriver Set Manufacturing: Precision Craftsmanship at Yongjia Tools
Nov 13, 2026
HOOK: What makes a screwdriver set truly reliable? It's the craftsmanship hidden in every millimeter.
BODY: In this 15-second realistic video, we take you inside Ningbo Yingzhou Yongjia Electrical Tools Co., Ltd., a leading manufacturer with 25 years of experience. Watch as we showcase the precision engineering behind our hex key and screwdriver sets—from the fixed mid-shot of the production line to the slow push-in close-up revealing the flawless finish and exact tolerances. Learn how our CR-V 6150 steel achieves HRC 52-55 hardness and meets rigorous torque standards, ensuring impact resistance for household and construction use.
Q: How are precision screwdriver sets manufactured to ensure durability?
A: At Yongjia Tools, precision screwdriver sets are crafted from CR-V 6150 steel, heat-treated to HRC 52-55 for optimal hardness and torque resistance. Each set undergoes strict quality control, including torque testing up to 220N for larger sizes, and complies with CE and GS certifications (TÜV Rheinland). With 25 engineers and a 45,000 m² facility, we produce 18 million units annually, exporting 95% to global markets.
CTA: Ready to elevate your tool offerings? Contact us at yjtcl@yj-tools.com or WhatsApp +86 133-9661-6513 for OEM/ODM inquiries. Follow for more factory insights!
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