| Size 1 | The NU-TWIST Size 1 tips have a flat bottom which eliminates tip jamming that occurs with the RWMA tapers at high forces. NU-TWIST Size 1 tips can be used with forces greater than 1,500 lbs. The diameter of the base is 0.625 inches. |
| Size 2 | The NU-TWIST Size 1 tips have a flat bottom which eliminates tip jamming that occurs with the RWMA tapers at high forces. NU-TWIST Size 1 tips can be used with forces greater than 2,000 lbs. The diameter of the base is 1.125 inches. |
| Size 4 | The NU-TWIST Size 4 tips have a flat bottom which eliminates tip jamming that occurs with the RWMA tapers at high forces. NU-TWIST Size 4 tips can be used with forces greater than 2,400 lbs. The diameter of the base is 1.625 inches. |