TECHNICAL SPECIFICATIONS - This set includes the following items: 3 × 300 mm, 4 × 300 mm, 5 × 300 mm and 6 × 300 mm T-handle hex keys. Material: S2 alloy steel. Surface treatment: blackening. HIGH QUALITY - These keys are made with premium steel. The black finish helps prevent rust and maintain a polished look, and the high-visibility textured finish prevents slippage during use. MAXIMUM COVERAGE - Designed with a longer length to allow access to hard-to-reach fasteners. Provides 360 degrees of rotation and up to 35 degrees of angle for maximum coverage. PERFECT TOOL - This hex key is designed with quality and versatility in mind! Use this hex key on track day or at home in your garage to work on your motorcycles, cars and more!