Star tip screwdriver set of 8 pcs. w/ProGuard finish. Set includes sizes: T9, T10, T15, T20, T25, T27, T30 & T40. Bondhus Screwdrivers tools are designed and manufactured to be strong and save time. Bondhus is the only hand tools manufacturer to design handle sizes proportional to the strength of the tool tip. This attention to detail reduces the possibility of applying too much torque to the tool tip, which could result in stripping or breaking of the tool tip or the screw head. All handles have cushioned surfaces to reduce fatigue during use and to improve grip, when when hands are wet or oily.