Part number: # 107061  Released: Oct. 15, 2010 Collet 11.5mm for .12 Engine Bearing Description · Photos (2) · News (1) · (click to enlarge) Collet for extracting 11.5mm ID bearings used in .12 engines, for use with HUDY Engine Bearing Puller set. CNC-machined hardcoated HUDY Spring Steel™ for incredible durability and lifespan. (click to enlarge)