Koswork Nut Driver Bit 1/4"x75mm 1/4" Drive Hex (for 4-40 nut) Tool - KOS13207-N1/4

The Koswork KOS13207-N1/4 is a 1/4" nut driver bit designed specifically for driving 4-40 nuts during RC car assembly and maintenance. At 75mm in length with a 1/4" hex drive shank, it fits standard power tools and screwdriver handles with a 1/4" bit chuck, making it a practical addition to any RC workshop bench. The extended reach helps when working in tighter areas of an RC chassis where a short bit won't clear surrounding components.

Key Features

• 1/4" hex drive shank for use with compatible power tools, cordless drivers, or manual bit holders
• Designed for 4-40 nuts, a fastener size commonly found on RC car chassis, suspension, and body posts
• 75mm overall length provides extra reach for recessed or hard-to-access nut locations
• Dedicated nut driver profile reduces the risk of slipping or rounding off fasteners compared to using a general hex key