Stainless steel angle key wrench set, long, tamper resistant Torx, 9 parts. Supplied = assembled. Conforms to = DIN ISO 2936. Model = TORX for tamper-resistant Torx. Number of parts = 9 pcs. Unit of measurement for hex key = metric. Product type = hex keys. Long model, stainless steel. Based on DIN ISO 2936. Hole at short and long end. Handle with double function (holder/T-handle) Fully hardened. Suited for use at extremely low temperatures. Extreme resistance to intergranular corrosion and oxidation. Extremely durable. Autoclavable (tools can be heated to over 100 C to kill germs) Rust free and acid resistant. In a sturdy folding holder.