Fixxxer Front Sight Installation Hex Tool for Glock 3/16 Hex Nut Driver Tool Aids in the installation and removal of front sights on Glock pistols Features a Hex wrench and a black finish, a must have for anyone who is installing front sights on Glock model handguns. 3/16" Hex, for sights with a 0.090 hex (all Glock models) Magnetic tip holds the screws securely in place. Fixxxer Brand