A Cobb Curette with an 11-inch shaft, size 4, and an angled (ang) tip is a versatile surgical instrument used primarily in orthopedic and spinal procedures. Size 4 denotes a medium-sized curette head, ideal for controlled removal of bone or soft tissue during debridement. This curette is commonly used in procedures like laminectomies, spinal decompressions, and joint surgeries, where accurate scraping or shaping of tissue and bone is required.