10” Crescent Double Ended Adjustable Wrench Crestoloy Steel Made In USA

• A double-ended adjustable wrench (sometimes called a double-jaw adjustable or twin-head Crescent wrench). • Marked “10 in. CRESTOLOY STEEL – MADE IN U.S.A.” • Made by Crescent Tool Company, the originators of the adjustable wrench and the source of the everyday nickname “Crescent wrench”. ⸻

1. Double Adjustable Heads • These aren’t common modern production items. • Each end has its own adjustable jaw and worm gear. • One head is typically set for smaller fasteners, the other for a different quick-adjust range.

This design was marketed for: • Automotive mechanics • Industrial / maintenance workers • Situations where you frequently switch between two nut sizes

It saves time versus constantly re-adjusting a single head. ⸻ 2. CRESTOLOY Steel • “Crestoloy” was Crescent’s proprietary alloy steel, introduced in the mid-20th century. • Strong, durable, and corrosion-resistant. • Tools marked CRESTOLOY generally date from the 1940s–1970s, depending on exact model details. ⸻ 3. USA-Made Vintage Crescent • Crescent moved some production overseas in later decades, so USA-marked versions—especially odd or uncommon models like this—are collectible to mechanics and tool collectors. ⸻ Size and Use Range A 10-inch double-head adjustable of this type typically opens each jaw to roughly: • ~1” to 1-1/8” per head (varies slightly by run)