Replaceable/add-on link (link 19) for the Leatherman Tread multitool. . Tools: - Screwdriver torx 27, . - screwdriver torx 30, . - Universal flat wrench for 6 mm nuts.Tools. Black version, where high-quality 17-4 stainless steel has been coated with a tough, scratch-resistant DLC coating.. This coating increases corrosion resistance and reduces glare, which is undesirable in some cases. Guarantee: 25 years! . Technical data . Color: black Material: stainless steel 17-4 . Manufacturer: Leatherman, USA . Additional materials Manual