Lucas [4mm (0.16in)] Used for cutting and excising bone tissue. Designed as a long, thin instrument with a handle at the proximal end and a concave, spoon-shaped and sharp-edged tip at the distal end.Designed to be single or double-ended.For cyst removal and tooth socket debridement. BONE CURETTE HEMINGWAY N.2 BONE CURETTE HEMINGWAY N.2