The hitachi g12ssg23st twin pack contains the following 1 x 115mm g12ss mini angle grinder with a powerful 580 watt motor with excellent overload durability it is compact and lightweight has a top mounted onoff switch specification input power 580 watt no load speed 11000min disc diameter 115mm weight 14kg 1 x 230mm g23st grinder which is the best in its class lightweight and with improved overload durability the motor has halved stator coils for excellent cooling efficiency which also increases