1-5 Dental Torque /standard Head High Speed Handpiece Quick Coupler 4Holes FDA by | Jul 8, 2026This is a dental High Speed turbine handpiece with Quick Coupler 4 holes which is fit NSK QD-J High Speed Handpiece. Applicable bur Φ1.595-Φ1.600. Handpiece length : 107mm. Handpiece length : 107.56mm.