Installs and removes HIVIZ front sights for Glock pistols. Large, hex-shaped grasping surface gives you a secure purchase and plenty of leverage. Also fits Walther P99, Smith &Wesson SW99, and other pistols with sights that use 3/16" hex head screws. Mfg: Hiviz SPECS: Aluminum, anodized finish. Fits 3/16" hex head screws.