This is a drill holder guide, the angle of which can be adjusted to 45 degrees Made of high quality aluminum alloy, the main structure is strong and durable Small size and lightweight, easy to carry, so you can take it wherever you need The base has angle graduations that you can use when adjusting the angle conveniently Its a great accessory for your electric drill, for precise drilling of holes at given angles Specifications: Main material: aluminum alloy Adjustable angle: 45 degrees Drill Holder Diameter: 42.5mm/1.6inch Vertical travel: 190 mm / 7.5 inches Width: 140mm/5.5inch Total Height: 290mm/11.4in Weight: 1.1 kg (approx.) Package includes: 1 x drill guide Note: 1. Please allow a little size error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.