Description
Jacobs Chucks and Keys are recognized by professionals and serious DIYers the world over as the number one brand for superior bit holding, durability and reliability. Positive locking mechanism prevents loosening in hammer and other high vibration applications Increases grip over standard bite chucks by providing more contact with the Bit Provides high mechanical advantage to convert hand tightening torque into superior bit gripping force Prevents chuck from locking open Constructed of high performance material to maximize durability and performance
