On many jigs this edge is marked "Rough cut". The guide bush sits into the slot in the jig and you start your cut with the bush pressed against the edge of the jig slot which is furthest away from the centre of the worktop. We suggest a half inch router of minimum 1600W. Set your router up with the correct guide and cutting blade. Clamp the jig into place making sure the clamps are not in the way of the router when you start cutting. The pins now allow the jig to be placed in the correct position for the cut. It is essential to have a perfect right angled cut on your worktop before you place the jig. The most common width is 600mm so if you have a jig for more than one width, a pin or pins must be placed in the 600mm hole.This is shown by the right hand red dot. Many jigs will accommodate different widths of worktop. The pins ensure the cutting slot is the correct distance back from the edge for the cut.
The jig is then pushed up to the front edge of the worktop. This is shown as two red dots on the diagram. Push the jig pins into the holes marked Front. The image above shows a jig (made transparent) over a worktop ready for the female cut. The joint you are going to cut needs to overhang the surface you are securing to. It is important it does not move a single mm during the cutting process. Lay the worktop down on a bench and clamp it securely. Maybe its because we are all gentlemen following the Ladies First rule! Its up to you which cut you make first, the male or female but for some reason most kitchen fitters cut the female joint first. The instructions for each cut are always placed on the face you need to be using and each hole or slot is marked for its appropriate use. Worktop jigs are made to be dual purpose for both cuts by simply turning them over or turning them round. The male cut protrudes from the front edge. The female cut is the cut which is made in towards the centre of the worktop from the front edge of the worktop. There are two cuts to make with every mitred joint. The cutting itself is done with a router to get a very accurate, very clean cut. They are made to fit various worktop widths and depths. Worktop jigs can be bought from the tools section on the right hand side of this page or you can hire them from a local hire shop. Order a length of cheap worktop and practice. Do not for one moment think you can fit your very first kitchen and get invisible joints in your worktops without a little practice. Using a mitre jig to cut kitchen worktops takes practice.
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