Aftermarket 9-1/4 Chisel Bit for Cable Tool Drill

- 9-1/4" Chisel Bit for Cable Tool Drill - Used 9-1/4" cable tool drill chisel bit for water well rig appears to be 2-1/4" x 3-1/4" or 2-1/2" x 3-1/2" API pin thread. - 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