7 Pc Cushion Grip Nut Driver Set, 3 16 in, 1 4 in, 5 16 in, 11 32 in, 3 8 in, 7 16 in, 1 2 in ORS NASCO High performance bond and wheel hardness High performance bond and wheel hardness are designed for fast cut and up to 60% more life and metal removed per wheel Provides excellent protection against tracking and arcing Self fusing material bonds quickly Workable at extremely low temperatures twist resistant shaft anchor Tip Ident® quickly identifies nut driver hex orientation and size by color coding the handle ends so you can easily engage the nut driver with the fastener General purpose selection of the most frequently used nut drivers Full hollow shafts facilitate work on long bolt applications Cushion grip handles allow for greater torque and comfort Internal flanges provide solid