DIN911 1.Material:Carbon steel, 2.Size:M1.5-M20 3.Surface:black.zinc plated. HEX ALLEN KEY WRENCH DIN9111, Size: M1.5-M202, Surface: plain, black oxide, zinc plated...3. Packing: plastic bag in box, boxes in per carton, pallet.4. Delivery time: 30days-45days after order confirmation.5.All of the products can be produced by customers' requirements. Hex allen Key Wrench DIN911