Made in the USA to work, not bend or strip out under professional use. Set contains: BL2 (.050"), BL4 (1/16"), BL5 (5/64"), BL6 (3/32"), BL7 (7/64"), BL8 (1/8"), BL9 (9/64"), BL10 (5/32"), BL12 (3/16"), BL14 (7/32"), BL16 (1/4"), BL20 (5/16"). L-style hex keys in convenient caddy sets. Each set contains a unique locking feature and marked slots for each key. Ball end works on angles up to 30°. Durable caddy keeps hex keys organized.