These are genuine Bourns H-90 trimmer tools. Meets UL 94V-0. FRP insulating plastic with a convenient pocket clip. With this genuine Bourns tool, one end is actually recessed - nothing is exposed. These help cut down on the worry about poking a metal screwdriver into your MAX for adjustments. The tips are metal. The exposed tip will easily fit through a 1/8" hole and is about 1/2" to the taper. The longer, fully-recessed tip is 1" long to the taper and will fit through a 3/16" diameter hole.
These are outstanding tools for biasing a MAX.