Aftermarket 12-1/2 to 13 Cable Tool Chisel Type

- 12-1/2" to 13" Cable Tool Chisel Type - Used oil gas water well drill bit - 3x4 API pin up, 22" oil rig memorbalia. - 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