John Henry (folklore)
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John Henry is an American folk hero. A black American freedman, he is said to have worked as a "steel-driving man"—a man tasked with hammering a steel drill into a rock to make holes for explosives to
John Henry illustration by Roy E. LaGrone (1942)
Plaque celebrating the legend of John Henry (Talcott, West Virginia)
Sign outside of the Big Bend Tunnel noting its connection to the legend of John Henry
John Henry statue in Summers County, West Virginia
Drill bit
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A drill bit is a cutting tool used with a drill to remove material and create holes, typically with a circular cross-section. Drill bits are available in various sizes and shapes, designed to produce
John Henry (folklore)
…American folk hero. A black American freedman, he is said to have worked as a "steel-driving man"—a man tasked with hammering a steel drill (such as a star drill or similar) into a rock to make holes for explosives to blast the rock in constructing a railroad tunnel. The story of John Henry is told in a classic…
From top: Spade, brad point, masonry, and twist drills bits
A set of masonry drills
Titanium nitride coated twist bit
Diamond-coated 2 mm bits, used for drilling materials such as glass