Amazon.com: Crescent 1/4" Drive 6 Point Standard Metric Socket 10mm - CDS17N : Tools & Home Improvement $1.49 @ Amazon

Crescent 1/4" drive 6 point 10mm metric socket. Who doesn't need an extra 10mm socket or two? I always seem to lose this size. Price: $1.49 at Amazon. Available at: https://www.amazon.com/gp/product/B078Z3978H/