General description The Square Hole Drill Bit Adapter is designed for both benchtop drill presses and hand drills, accommodating clamp diameters ranging from 38 to 55mm (1.5 to 2.2 inches). This versatile tool enhances the functionality of your drilling equipment, making it ideal for woodworking, furniture making, and other related applications. Its sturdy construction ensures durability while allowing for effortless installation and removal. Technical specifications Clamp diameter compatibility: 38 to 55mm (1.5 to 2.2 inches) Material: Stainless steel Color: Silver Measurement allowed error: +/- 1-3cm Installation Easy to install and remove, allowing for quick changes without the need for additional tools. Usage Perfect for enhancing the versatility of table drills and hand drills. Ideal for various applications in woodworking and furniture making. Other information Note: Square hole drill and electric drill are not included in the package. To prevent rusting, especially in humid