14pcs Chucking Reamers Over & Under sizes including: 0.1240, 0.1260, 0.1865, 0.1885, 0.2490, 0.2510, 0.3115, 0.3135, 0.3740, 0.3760, 0.4365, 0.4385, 0.4990, 0.5010 American standard. High speed steel. Wooden box included