Features: Make of Metal, high strength, impact resistant, wear resistant and enduring. Excellent craftsmanship, unique designs, stable performances and high reliability. Suitable for most rings or double hole eye shear jacks on the market. EASY TO USE: If you do not have a 1/2inch hexagonal wrench or impact wrench, it is easy to insert a standard drill bit into a 1/2inch adapter and use any cordless or corded drill with this tool and one of those difficult shear jacks. Easy to carry, practical and reusable, and fit perfectly for your scissor jacks without falling down. Specifications: Materials: Metal Adapter size: about 4.7x5cm/1.85x1.97inch Extension rod length: about 71mm/2.8inch Package Includes: 1set Drives Impact Wrench Adapter Tool note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.