Installation tool works with standard set screws having a 5/32" socket, with or without center pin. Hollow-body design works with our PRP38 Vandal-Resistant Set Screws and BHP76 Vandal-Resistant Button Head Bolts. Video Instructions link: youtu.be/dESP496ry6k. You can also search "1018063 5 32th allen wrent hex fixturedisplays" on youtube to locate the video. T100 5/32" Allen Wrench Tool Wide Handle Grip T Key 1018063-NPF