Adhering to the ISO 2380 hex standard, the side length tolerance is controlled within ±0.03mm, seamlessly matching M4-M6 screw slots. Its torque transmission efficiency is 20% higher than Phillips bits, stably delivering a maximum torque of 15N·m. The rounded corner process reduces stress concentration, preventing slippage or screw stripping when dealing with hard materials like stainless steel and aluminum alloy—particularly suitable for precision-demanding scenarios such as electronic component installation.

Forged from one-piece S2 alloy steel or chrome-vanadium steel, it achieves a hardness of HRC58-62 after quenching and tempering, with wear and impact resistance 2.5 times that of ordinary steel bits. It can withstand over 50,000 cycles of high-frequency use. The surface nickel-plating or blackening treatment passes the 72-hour salt spray test, remaining rust-free in humid and dusty environments. Some models feature a built-in strong magnetic ring (suction force ≥3N) to securely hold screws, preventing falls during overhead operations and enhancing safety in confined spaces.

Conclusion: The 1/4" hex bit, centered on "precise fit, rugged durability, and high efficiency," meets the usability needs of household users while handling industrial-level frequent tasks. Its standardized specifications and balanced performance make it a highly cost-effective basic accessory in toolkits, especially suitable for scenarios requiring both precision and efficiency.