When you’re looking for premium hard jaws for your shop, give the experts at Huron Machine Products a call. Hard Chuck Jaws are reversible for ID and OD gripping and are for first operation or roughing. Our Hard Chuck Jaws are made from 1018 cold roll steel and are hardened to 56-58 rockwell .020 to .030 deep. Our Hard Chuck Jaws come standard in 2 step and 1 step configurations but if you cannot find the correct hard jaw in the Jaw Search please call us at 1-800-327-8186 and one of our Jaw & Chuck Specialist will be more the happy to assist you. Remember that at Huron, we keep the world turning.