Additional Drilling Equipment - 3" USED CARBIDE ROCK DRILL BIT . BIT IS THREADED. BIT DIAMETER-3" BIT THREAD ID-1" LENGTH-2-1/4" ACTUAL PICTURES SHOWN Condition: Used We have listed over 100 Rock bits. See all our Bits here: Rock Bits Sign up for new sales and special promotionsSign up here and we will let you know when this item goes on sale TYLER #2 x1 R101 Track Page Views WithAuctiva's FREE Counter. Location: Wichita, Kansas. For complete listing information please select the Click To Bid button to see this item on eBay.