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Durable and lightweight for regular use, the Derailleur Screwdriver - DSD is constructed from CNC machined, hard anodized 6061 aluminum, with a 5mm precision ground apartment blade for exact attachment to the components that hold your derailleur in place. The ergonomic handle makes twisting and turning as comfortable as possible when carrying out essential gear system maintenance.
A well-crafted screwdriver from Park Tool, any toolkit would benefit from its addition.