This set includes 6 high - quality chrome vanadium steel hex wrenches. The 4 / 5 / 6 mm wrenches feature a single ball end, perfect for hard - to - reach and blind spots. The ergonomic plastic handle has a padded design, offering a better grip and more comfort during use. HEX WRENCHES: 2 / 2.5 / 3 / 4 / 5 / 6 mm. TOOL MATERIAL: SNCM - V steel / Chrome vanadium steel. SIZE: 14 x 7.8 x 1.6 cm / 5.5” x 3.1” x 0.6” (2 / 2.5 / 3 / 4 mm); 20 x 9.7 x 2 cm / 7.9” x 3.8” x 0.8” (5 / 6 mm). WEIGHT: 14 g / 0.49 oz (2 mm), 17 g / 0.60 oz (2.5 mm), 21 g / 0.74 oz (3 mm), 29 g / 1.02 oz (4 mm), 64 g / 2.25 oz (5 mm), 80 g / 2.82 oz (6 mm).

Using this Topeak T - Handle Duohex Allen Wrench Set is easy. Just pick the right sized wrench for your job. If you're working in a tight or hard - to - see spot, use the 4, 5, or 6 mm wrenches with the ball end. When you hold the wrench, the padded handle will make it comfortable and give you a good grip. As for maintenance, keep the wrenches clean after each use. You can wipe them with a dry cloth. Avoid using them on overly hard materials that might damage the steel. Also, store them in a dry place to prevent rust. This way, your wrench set will last a long time and always be ready for your next project.