l More large bore:
The largest bore in wedge type power operated chucks.
l 20% large bore:
Approximately 20% higher speed, higher gripping force and larger bore compared with regular chucks.
l Model NB-200A chucks are assembled with adaptor for ASA B5.9 type A spindles.
l Model NB-200A chucks are manufactured form high grade alloy steel. All sliding surfaces are hardened and ground for accurate actual running and long service repeatability.