The product is mainly a hinge fixture and drill bit kit made of alloy materials, which is durable, safe and practical, and can be well applied to woodworking work. Unique design and good production technology make it have stable performance, which is a practical choice for professionals. Simple and practical, with complete configuration, it can help you enjoy relaxing woodworking time easily and will bring you more convenience. Features -Color: Blue, Red.-Material:Alloy.-Size: About7.70X6.60X2.10cm/ 3.03X2.59X0.83inch. -The aperture is 35mm. The special movable depth limiter design makes drilling easier.-The reasonable structural design allows it to provide you with visibility and good stability.-It is made with excellent technology to ensure precise drilling and prevent movement during operation.-It can help you create perfect and accurate holes and bring more convenience to your work.-This is a very practical and well-equipped tool suite that will serve you well.Packing list: 1 Set x Hinge Drilling Jig