Which material is commonly used for the casing of a hand drill?

The material commonly used for the casing of a hand drill is ABS (Acrylonitrile Butadiene Styrene) or HIPS (High Impact Polystyrene). These materials are favored in such applications due to their excellent balance of strength, durability, and lightweight properties. ABS, in particular, offers good impact resistance and can withstand the wear and tear associated with frequent use in tools like hand drills.

Additionally, these plastics can be molded easily into complex shapes, which is essential for creating the ergonomic designs often found in hand tools to ensure comfort and usability. Their resistance to temperature variations and chemical degradation also contributes to their suitability for this purpose, allowing the tools to maintain performance over time.

In contrast, while stainless steel is strong and resistant to corrosion, its weight can make tools cumbersome. Copper is too soft and malleable for such applications, lacking the necessary durability. Polyethylene, while lightweight and flexible, does not provide the strength needed for a hand drill casing, which is subject to mechanical stresses. Therefore, ABS or HIPS are the ideal choices for the casing of hand drills.