The 1/4" hex bit (6.35mm interface) is a widely used standard tool accessory, renowned for its high versatility, efficient torque transmission, and adaptability to diverse scenarios. It serves as an essential tool for both household repairs and industrial applications.

Featuring an ISO 2380-standard hexagonal structure, the bit maintains a side length tolerance of ±0.03mm, ensuring a snug fit with M4-M6 screw slots. Compared with Phillips bits, its torque transmission efficiency is increased by 20%, and it can withstand a maximum torque of 15N·m. The rounded corner design effectively reduces stress concentration, preventing slippage and screw stripping caused by edge wear. This makes it particularly suitable for working with hard materials such as stainless steel.

Crafted from S2 alloy steel or chrome-vanadium steel, the bit undergoes quenching and tempering processes, achieving a hardness of HRC58-62. With black oxide or nickel-plated coatings, it demonstrates excellent rust resistance, passing salt spray tests exceeding 72 hours. Some models are equipped with built-in permanent magnets (magnetic force ≥3N), which facilitate the adsorption of screws, enhancing work efficiency in elevated or confined spaces.

The 6.35mm interface is compatible with major global power tools, including electric screwdrivers, pneumatic tools, and manual ratchet wrenches from brands like Bosch and DeWALT. Thanks to the quick-release buckle design, bit replacement can be completed within 0.5 seconds, improving efficiency by 60% compared to traditional threaded connections. Additionally, the short-shank version (25mm) is ideal for narrow spaces, while the extended-shank version (150mm) meets the needs of deep-hole operations. Whether it's furniture assembly, home appliance repair, or screw fastening on electronic device production lines, the 1/4" hex bit proves to be a reliable and indispensable tool.