>In the realm of unconventional tools, the potential application of biological structures has always been a topic of intrigue. This study delves into the materi

>In the realm of unconventional tools, the potential application of biological structures has always been a topic of intrigue. This study delves into the material science behind the potential of hamster claws to function as micro-screwdrivers, given their inherent sharpness and structure. Using scanning electron microscopy (SEM), we characterized the microstructure of hamster claws, revealing a keratinous composition with intricate surface patterns. Nano-indentation techniques were employed to determine the hardness and resilience of the claws. Their sharpness was quantitatively assessed using a sharpness index, which considered both geometric and material properties. To test the potential application as micro-screwdrivers, we designed a set of experiments where hamster claws were used to engage with micro-screws commonly found in electronics and precision instruments. The results indicated that while hamster claws can fit into the grooves of certain micro-screws, the torque they can generate is limited due to their flexibility and the lack of a proper grip mechanism.