Fourth Hand Cable Stretcher - BT-2 - from Park Tool USA

It features one-hand operation with a thumb lock to hold the cable tight while your hand is removed to tighten pull-up bolts and nuts.

Made from heat treated steel, chrome plated, and featuring cushion grips for comfort.

A must for any cycle workshop, home or professional.

Park Tool Ref: BT-2

Instructions:

To use the BT-2 cable stretcher, lever the lever in the open position and place cable in jaws.

Squeeze the handle to pinch the cable.

It's necessary to push the moving arm of BT-2 against a brake arm, derailleur body, or some other fixed object in order to pull and tension the cable.

Secure the cable pinch bolt or nut to hold cable.