An alternative insert mandrel which requires the insert to be threaded onto the mandrell.

If a slip with a driver while installing an insert nut has ever damaged one of your otherwise finished projects or the hardware itself, you understand the value of this driver. It threads into the insert nut, securely engaging it without any chance of slipping out or marring its face. A shoulder keeps the driver from going too deep.

Made from stainless steel, each driver has an industry standard 1/4" detent hex shank to work with standard drivers and drills, with a groove that allows you to use it with a quick-change bit holder. Available in 1/4-20 and 5/16-18 UNC versions and Metric 3,4,5 and 6mm inserts. These drivers seat either slotted or un-slotted inserts