Type: Center Drill Bit : Woodworking twist drill bit: screw extractor countersink drill bit: step drill drills: extractor the fish Jig is an economical alternative to expensive drilling devices and confusing jigs. Tool quickly locates drill center points for all of hinges and mounting plates. Features a "V"-locator that works off of a center reference line. Jig can be adjusted for changes in door cup alignment. Name: Hinged hole locator Function: light and portable, easy to operate; and , continuous knife, Suitable for positioning and installation of furniture door hinges Instructions: 1. Determine the position of the hinge cup, the short plate is facing upward, the screw is fastened of the wooden board, and the hinge cup hole is drilled; 2. Draw a corresponding center line on the other board, the short board downward, the middle line is aligned with the inverted triangle, and the hinge positioning hole is drilled; 3. Install the hinges. colour:blue Material:ABS+ metal size:Hinge Locator: 77*66mm Hole opener: 35mm Package Contents: 1* hinge positioner 1* hole opener Only the above package content, other products are not included. Note: Light 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.