6 SET FRETTE GIOIELLIERI POPOLARI: PIETRA, CERVO, CILINDRO, RUOTA, ROTONDA, TAZZA
Set 3: CYLINDER SQUARE BURS (CROSSCUT) FIG 21. Set 2: HART 90 DEG BUR SET (ALSO REFERRED TO AS BEARING CUTTERS) FIG 156c. Six popular Bur Sets for the Professional and DIY. Set 1: STONE SETTING BURS, FIG. 413, 12 BUR SET.