Aftermarket Chicago 11-1/2” D X 57-1/2 L Chisel Bi

- Chicago 11-1/2” Diameter X 57-1/2" Length Chisel Bit for Cable Tool - Used - Chicago USA - 57-1/2" length - 11-1/2" wide should fit inside 12" inside diameter well casing or work - For drilling top hole with spudder rig. - Presumably American manufactured with carbon and/or alloy steels, but unsure if this is Acme, Spang, Gill Rock Drill, Ideco, Trident, Rampp, O.W.S. Co., Keystone or maybe another historical tooling manufacturer. - If you require thread protector(s) on tool joint(s) add another $15. - Located in Mifflinburg, PA USA