Toothsaver Files (6 files per pack)Orifice opener: 17mm length 20 tip and 10% taper. Use at 350 rpm at 3N cm. Excellent for repositioning the canal to preserve coronal tooth structure. Use if coronal 3 4mm. Glide path file: You can use this file and the orifice opener with any system you choose. 25mm 15 tip size and variable taper. Excellent glide path file. Use at 300 rpm and 1. 5N cm torque. Finishing files advice: Do not have fixed ideas about what size you need to finish you