Commonly referred to as a 4th Hand, Park's Cable Stretcher pulls cables tight. Its one-hand operation and thumblock holds the cable so you can easily maintain cable tension while tightening cable fixing bolts and nuts. Made from chrome-plated and heat-treated steel and featuring cushion grips for comfort, the Park Cable Stretcher is a must for any serious mechanic.
Park Tool 4th Hand Cable Stretcher // Essential Bike Workshop Tool
One of the most useful tools that I've only just discovered! The Park Tool BT-2 is my new best friend when working on cable pull brakes in the Lama Garage. As seen in my recent TCR Di2 build video, today I have a closer look at how this tool works and some cheaper alternatives out there on the market.