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DESTORNILLADOR ALLEN

It's not exactly a screwdriver, rather it is an Allen wrench, used to unscrew and screw, screws of this type.

DESTORNILLADORES ESTRELLA

 It is a tool consisting of a rod or cane rather long ending in a star-shaped tip that can have different measures of both thick and wide as a handle.

DESTORNILLADOR PLANO

 It is a tool consisting of a stem or rod longer or shorter terminated shovel may have different measures of both thick and wide as a handle.

DESTORNILLADOR STECKER

It's not exactly a screwdriver, rather it is a pipe wrench, is used to remove or tighten hex nuts.

DETECTOR DE HUMO

A smoke alarm is an alarm that detects the presence of smoke in the air and beeps warning of the danger of fire.

DIODO

A diode is a two-terminal electronic component hich allows the circulation of electric current throw;' it in one direction. 

Diodo rectificador

Diode rectifier. Are solid-state semiconductor, vacuum tubes or valves as gaseous mercury vapor, are types that constitute the diode element or circuit that converts alternating current to direct current.