With this money saving set you have a host of bits socket wrenches and drill that will ensure you always have the right tool and bit for any job or material includes 5 wood burs with a diameter of 4 to 8 mm 5 hss metal drill with a diameter of 2 to 5 mm 5 stone drill with a diameter of 5 to 8 mm 3 socket wrenches with diameter 7810 mm 13 screwdriver bits length 25 mm ph1 ph2 ph3 pz1 pz2 pz3 s4 s6 s7 t15 t20 t25 t30 1 adapter for socket wrench 1 universal hold