Universal tooth design grips six different types of nuts and bolts, preparing you for any project. Spline, Hex (6pt), 12pt, square (4pt), external Torx, partially rounded hex (6pt). Angled head provides knuckle clearance and better leverage. Thicker, rounded beam for comfort and strength. Reinforced open end reduces tip spread under heavy load, preventing rounded fasteners. High contract marking makes size identification easy. Matte finish for non-slip grip.