Versatile Wire Gauge Range: The Hammer Lug Crimper Tool accommodates connectors from 8 gauge to 4/0 gauge(8 AWG, 6 AWG, 4 AWG, 2 AWG, 1 AWG, 0 AWG, 00 AWG, 000 AWG, 0000 AWG), making it perfect for a wide variety of applications including battery and welding cables. Professional Crimping Capability: Designed for heavy-duty use, this crimper ensures secure and professional quality crimps, essential for reliable electrical connections. Durable High-Strength Iron: Constructed from robust iron, this tool can withstand thousands of impactful strikes, ensuring long-lasting performance and reliability. User-Friendly OperationSimply load the connector and cable, then crimp with a sledgehammer (recommended 2 to 4 lbs). It also functions well in a shop vise for added convenience. Compact and Portable Design: At just 3.75 inches tall, the Hammer Lug Crimper Tool easily fits in any toolbox, making it the ideal choice for both professionals and DIY enthusiasts on the go.