I’m a dental assistant at and endo office and do all the ordering… we have been using LA Axxess Diamond Bur Friction Grip (by Kerr Endo) for years with no problem but in the last six months or so more and more (occasionally a whole box) will be to “fat” to fit into a Kavo electric high speed. My Henry Schein rep will replace them but it’s honestly becoming a huge inconvenience. Anyone know what’s going on? Or have suggestions for a different burr we can try? I just feel that at almost $90 for 6 burrs there should be some consistency.