BROWNELLS MAGNA-TIPA(R) SEE-THRU RING BITS The Brownells MAGNA-TIPA(R) See-Thru Ring Bits are specialized tools designed to facilitate the installation and removal of scope rings with see-through mounts. These extra-long bits are engineered to reach through the scope rings, allowing for efficient engagement with the mounting screws without necessitating scope removal. Description and Features: Extra-Long Design: The extended length of these bits enables them to reach through see-through scope rings, providing direct access to the mounting screws. This design feature eliminates the need to remove the scope during installation or adjustment, thereby preserving the scope& Mfg: Brownells SPECS: 1-7/8" (4.7cm) long overall, 1A 1/4" (3.1cm) long shank.