3/4 Rockler JIG IT® Deluxe Concealed Hinge Drilling System 19mm,System 19mm 3/4 Rockler JIG IT® Deluxe Concealed Hinge Drilling, Complete system allows drilling of two hinge cup holes with one set-up,Includes robust aluminium rail 19mm (3/4”) and 2 x hinge cup drilling guides that slide along rail to align with hinge plates, First-class design and quality Newest and best here BEST Price Guaranteed Professional Quality Up to 80% - Guaranteed 100% Authentic. Drilling System 19mm 3/4 Rockler JIG IT® Deluxe Concealed Hinge.