COUPLING NEEDED (ORDER SEPARETLY) 3/4" X 1-1/4" BIT DOES NOT COME COLORED AS SHOWN IN THE PICTURE **BLUE PAINT USED FOR PHOTOGRAPHY PURPOSES ONLY** BITS MAY COME W/ RUST INHIBITOR COATING (ORANGISH / RED) OR NO COATING AT ALL DEPENDING ON PRODUCTION. The Borit 5 inch Backreamer bit can be used after initial drilling with the 2 or 3 inch bit and used for clearing a run for easier pipe insertion. It is manufactured in the United States and designed to back ream through most soils with ease. Designed to be used after drilling with 2 or 3 inch schedule Borit bit. Borit Tool FAQ »Borit Tool Instructions » When Using the 5 inch Backreamer you must first drill through with the 2 or 3 inch bit. After you have drilled through remove the bit used and attach the 4 3/4 inch Backreamer and pull it back through. Please review the Borit Pre-Use Instructions for more information.