The single piece Contractor Hinge Jig is designed for recessing hinges in wooden doors & frames with a plunge router. It is easy to use with minimal setting-up time, completing the job both accurately & quickly. Used on-site & in joinery shops to increase productivity with excellent results. Four apertures for fire door requirements. No need for marking out in the conventional way. Quick & simple to set-up as the hinge is used as the pattern. Clean & accurate recesses are achieved every time. Suitable for timber based doors & square butt hinges. Can be used on both inside and outside doors, rebated frames and on maximum 25mm thick fixed stops. Use with a light duty plunge router with 1/4 inch collet. Long reach router cutter required, 12mm diameter with 70mm overall length. Angled position slots to prevent creep. Unibase may be needed. T4EK router requires a ref. UNIBASE or special guide bush ref. GB/T4/160. Contents: 4 x Apertures 2 x Bradawls with spacer 1 x 16mm gui