2-9/16 ROUND input and output shaft size. Brand new never used or installed. The item "Bobcat 48 Auger Extension 2-9/16 round shaft skid steer excavator" is in sale since Monday, December 9, 2019. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Attachments\Other Heavy Equipment Attachments". The seller is "gjwiley79" and is located in Orem, Utah.This item can be shipped to United States.