Universal joint : 3/16" to 3/16"

Universal Joint. 3/16" (4.75mm) to 3/16" (4.75mm)

Note:
Not for high rpm applications, 20,000rpm or less.

Specs:
Measures: mm long x mm diameter. 
Motor end: 3/16" (4.75mm) for smooth shaft. 
Cable end: 3/16" (4.75mm) for smooth shaft.
Material: Hardened steel