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Vintage used tricone rotary rock drill bit believed to be oilfield or water well drilling related. Heavy steel construction with threaded shank and three rotating cutter cones. Great industrial display piece, machinist décor, steampunk, man cave, or collectible drilling/oilfield equipment item.
Condition shows heavy surface rust, wear, and age from use/storage. Cutter cones still visible and rotate with resistance. See photos for exact condition and measurements.
Features
* Vintage tricone rotary drill bit
* Marked:
* “2 3/8” to 3” 7/8
* “USA”
* Patent/casting numbers visible
* Heavy steel construction
* Industrial oilfield/well drilling tool
* Great display or collectible piece
* Approx. 7” tall
* Approx. 3.5” wide
* Uncleaned original condition
