This is a long shaft ending in a slim unguarded right angle.
 
This attachment connects to the Quick Connect in the left or right horizontal position.
 
It accepts the guarded chamfer burr which is used to float sharp enamel points off the upper and lower arcades.
 
It also accepts the popular apple core burr - which is excellent for light buffing of canines, along with contouring the 06’s (“bit seat”) and gives great access the the caudal buccal cingula in minis.
 
It also accepts the diastema burrs and is in the correct alignment for using the slimline 4.5 mm diastema burr used in occlusal relief grooves.