IM PRIME INSTRUMENT IS AUTOCLAVABLE AND 360° ROTATABLE AND DISMANTLED IN 3 PARTS (INSERT, OUTER TUBE AND HANDLE) "IM INSTRUMENT" HAS WITHOUT RATCHET HANDLE AND SPECIAL RATCHET HANDLE WHICH RATCHET CONTROL IS ON MIDDLE FINGER AND ALSO WHENEVER SURGEON WANTS USE AS LIKE WITHOUT RATCHET HE CAN USE RATCHET HANDLE AS LIKE WITHOUT RATCHET HANDLE JUST DOWN OF RATCHET KNOB . IT COMES WITH AN ERGGONOMIC DESIGN WHICH MAKES MORE HELPFUL TO SURGEON, IT EASY FOR THE SURGEON TO HOLD THE INSTRUMENT PROPERLY IN HIS HAND. IM PRIME INSTRUMENTS HAVE PRECISION AS MANUFACTURED ON CNC SO THERE IS NO HIDDEN SPACE TO ACCOMMODATE BLOOD & DEBRIS.