VECTOR TURBO TORQUE Straight Nose Cone (4:1)(Dental) por | Jul 19, 2026TT-SN4 – VECTOR TURBO TORQUE Straight Nose Cone (4:1). If you are using a 5,000 rpm (prophy) motor for finishing and polishing you will be amazed by the improved performance and results of a 20,000 rpm motor system.