PREMIUM DURABILITY: This threading tool set for homeowners, craftsmen, and mechanics is made of high-carbon chromium bearing steel; titanium plating provides even greater strength, durability, and longevity so you can tackle any job with confidence. ADDITIONAL TOOLS: In addition to the 78 taps and dies, this tool set includes both adjustable and T-handle wrenches, a 1/8 flathead screwdriver, and thread pitch gauges to find and carve the exact threading you need through wood, copper, aluminum, iron, steel, and more! BLOW-MOLDED CASE: The metal storage case stores and organizes the SAE and metric taps and dies, providing easy organization and portability wherever you need them.