Additional Drilling Equipment - You are bidding on a Sandvik Down the Hole,Rock Drill, Button Bit # 42-3A11095-LKK . The diameter of the attachment hole is 7/8" length is 11 1/2" ,Dia. is 3 3/4 inch This item is New. Buyer will pay shipping and I accept Paypal. Location: Joliet, Illinois. For complete listing information please select the Click To Bid button to see this item on eBay.