Key Features and Use

Function
The mandrel is designed to attach directly to a low-speed handpiece, typically a contra-angle piece, and is used to hold small circular abrasive discs or strips. These are essential for fine adjustments, trimming excess material (flash), contouring restoration anatomy, and achieving a high-gloss polish.

Design and Connection – Handpiece Interface
The shank of the mandrel is engineered to fit into a standard latch-type (RA) low-speed contra-angle handpiece, ensuring secure attachment and stable rotational performance during use.

Design and Connection – Disc Interface
The working end of the mandrel features a secure disc attachment mechanism, commonly a screw-type fitting or snap-on/snap-off system. This allows for rapid, safe, and precise mounting of TOR VM polishing and finishing discs.

Material
The mandrel is constructed from durable, corrosion-resistant stainless steel, allowing it to withstand high rotational speeds, friction, and repeated steam sterilization (autoclaving) without loss of performance or integrity.

Model Number (N 1.121)
The designation N 1.121 identifies a specific mandrel type, size, and connection style that is universally compatible with the TOR VM polishing and finishing disc system.