Koswork Hex Wrench 2.5mm with 75mm Tip Tool - KOS13213-H25

The Koswork KOS13213-H25 is a 2.5mm hex wrench designed for precision fastener work on RC cars and other radio control models. The 75mm tip length gives you the reach and leverage needed to access recessed screws on chassis components, motor mounts, and suspension parts without straining in tight spaces. A go-to allen key size for RC maintenance, 2.5mm is one of the most commonly used hex sizes across 1/10 and 1/8 scale kits.

Key Features

• 2.5mm hex size — one of the most frequently used fastener sizes in RC car building and maintenance
• 75mm tip length provides extra reach for deeply recessed screws in chassis and drivetrain assemblies
• Suited to general RC workshop use including assembly, tuning, and trackside adjustments
• Koswork tool construction is aimed at RC-specific use rather than general hardware