8" Outside Diameter x 28" Lenght Cable Tool Chisel Drill Bit
Used - 8" width / outside diameter x 28" length
2-3/4" x 3-3/4" thread on pin.
For earth boring / water well digging truck.
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.