1) SUPERIOR QUALITY: Forged from high-quality chrome vanadium steel, with advanced heat treatment process, our hex key set is built to last with performance in corrosion resistance and rust prevention for long-lasting use.

2) BALL END DESIGN: Designed with a ball end to access hex screws up to a 25° entry angle, allowing easier access to hard-to-reach places and making it easy to adjust at any angle.

3) COMPLETE SIZES: 9 pcs long arm ball end hex keys include: 1/16, 5/64, 3/32, 1/8, 5/32, 3/16, 1/4, 5/16, 3/8 inch; 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10 mm. With the most common inch and metric hex key sizes, this wrench set can easily remove and install most hex screws found in cars, furniture, equipment, and more.

4) VISIBLE COLOR: Each hex key with heat-treated and chrome-plated surface also features a different highly visible color to make it easy to distinguish between different sizes. A textured, non-slip surface for a good grip even with oily and dirty hands.