VS210 FIXIN 1.9 - 2.5 Series Drill Guide by Intrauma SpA. FIXIN dedicated drill guide to be used in the Mini series plates in order to drill a perpendicular 1.5mm or 2.0mm hole. The drill guide will accomodate either 1.5mm drill bit VS221 or 2.0mm drill bit VS220; depending on what size of Mini FIXIN screw surgeon will use: 1) FIXIN 1.9 Locking screw requires 1.5 drill bit VS221; 2) FIXIN 2.5 locking screw requires 2.0mm drill bit.