They are differentiated by the type of active tip, type of fitting and inner and outer diameters:

• Active tip type: ABL (Aggressive Bone Lesion) 

• Inner/outer diameters available: 2.0 / 3.5 – 2.4 /4.5

• Available fittings: R – A – F – T – L – E – P – S – K – W – J

The full list of models is available in the user manual.