High functionality and improved workability

* Easy to find even in a tool box. Color-coded by size. Manganese phosphate base to prevent paint from peeling off.
* New ball shape. Since the drive part is set to contact near the entry point of the hexagonal hole, the maximum tilting angle is 38° (our design value). Enhanced durability by enlarging the cross-sectional area of the ball neck.
* The both ends are high-precision black point finish, which is unaffected by paint.
* "Ultra Hex", which is 3-point and 3-surface contact cross-section shape, is adopted to reduce deformation of the screw hole.