Gentle Hand-Bur Systems - "C4: Our clamp-lock system (ideally) uses a tray-set of 4 handles with bur sizes #2,4,6,8. These pen-style, pin vise (PSPV) aluminum handles securely anchor 2 mm in diameter HP 44.5 mm dental burs. Perforated ""Pin-Lock"" handles twist-tighten (with a locking-pin) a micro-chuck assembly (MCA) bur-anchoring mechanism. The MCA is coupled with a smooth grip clamp-lock tightening device which grips the MCA's outer collar (compression sleeve) for counter pressure tightening with the locking pin. Testing has proven that supplemental mechanical force makes it impossible for a bur to loosen while in use. "
2022-03-24