11pcs/set adjustable high speed steel hand reamers fitted in deluxe wooden case, all 6 blades. A H4 15/32 – 17/32. H5 17/32 – 19/32. H6 19/32 – 21/32. G H10 27/32 – 15/16. J H13 1-3/16 – 1-11/32.