You'll never again need pliers to remove a set screw stuck in the end of a post or mount. These 8-32 (M4) set screws have the standard 5/64-in. (2-mm) hex-broach in both ends and are 0.63 in. (16 mm) long. a simple idea thats long overdue. All Newport posts are now supplied with these double-ended set screws. They are available in packs of 10 to upgrade the posts already in your lab.