3/16" Hex Thin Wall Nut Driver Specifically designed for removing front sights screws from Glock and others. Large handle fits all sized hands, tool has a 4.8" overall length Thin wall stainless hex is needed because the tight clearance between the slide and hex head of the sight screw. Our front sight tools have a special flat face that allow full contact with the hex head. Heads on the front sight screws are very low profile and sometimes challanging to remove. This design grips the entire head, this will minimize the chance of slipping off and damaging something. Made in USA Squirrel Daddy Front Sight Tool with Large Handle and 3/16" Hex Nut