The Combination Spanner (41mm) is a versatile hand tool designed for tightening or loosening fasteners such as nuts and bolts. It features an open-end on one side and a ring-end on the other, allowing for flexibility in use. The 41mm size is ideal for larger bolts and fasteners, making it suitable for heavy-duty applications in automotive, machinery, and construction work. The open-end side provides quick access to fasteners in tight spaces, while the ring-end offers a more secure grip, reducing the risk of slipping. This combination spanner is typically made from durable materials like chrome vanadium for long-lasting performance.