Endodontic Latch File Reciprocating Angle The Quarter Turn Endo is a perfect solution for reciprocating all latch type endodontic fi les. Equipped with a push-up latch head, you can easily and safely install / remove fi les from the head. The body is geared to reduce the speed of the motor 4 times and increase the torque. • Reciprocates latch fi les • Attach this handpiece to any 20K rpm motor to run at 5,000 rpm • 4:1 gear reduction • E-type fi tting