An Adjustable Top Jack is a versatile lifting tool commonly used in automotive repair, construction, and industrial applications. It allows users to raise and support heavy loads (like vehicles or machinery) at varying heights with stability. Here’s a breakdown of its features and uses: Key Features:1. Adjustable Height – Typically includes a threaded screw or hydraulic mechanism to fine-tune the lifting height.2. Heavy-Duty Construction – Made from durable steel or aluminum to handle high loads (often rated for 2–20+ tons).3. Flat or Grooved Top – The "top" may have a flat plate, saddle, or groove to securely hold objects (e.g., vehicle frames, beams, or machinery).4. Portable – Some models are compact for easy transport, while larger versions may have wheels.5. Safety Mechanisms – May include locking pins, load-rated welds, or non-slip pads for stability. Common Uses:- Automotive Work: Lifting cars, trucks, or trailers for repairs.- Construction: Supporting beams, scaffolding, or heavy equipment.- Industrial Maintenance: Adjusting machinery height during installation or repair. Types of Adjustable Top Jacks:1. Mechanical Screw Jacks – Manual adjustment via a threaded screw (precise but slower).2. Hydraulic Jacks – Faster lifting with hydraulic fluid (common in automotive shops).3. Pneumatic Jacks – Air-powered for rapid lifting (used in industrial settings). Safety Tips:- Always check the weight rating before use.- Place on a stable, level surface.- Use jack stands for long-term support (never rely solely on the jack).If you’re looking for a specific model or application advice, let me know your needs (e.g., load capacity, portability, or industry use)!