Application: Used for the angle of the woodwork hitting the hinge and the door lock groove.Suitable for DIY and hinge installation of door locks, woodwork, etc. woodworking ruler is a multifunctional device for length measurement and angle drawing.this tool for every woodworkers and mechanics. Precise Cutting: it allows you to easily and accurately engrave the fillet cutting of woodworking planer projects, without additional measurement and not easy to make mistakes Woodworking Right Angle Punch Chisel : High Quality Materials: Durable and long service life, anti rust and corrosion, high hardness, cutting Craftsmanship: The door hinge square mortise is professionally designed, finely made, and has the characteristics of high precision.. Material: Alloy steel colour: blue Package Contents: 2 x Right Angle Woodworking Corner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.