A spring loaded pencil in a body to give the offset between the worktop jig and the guide bush when using a 1/2 inch diameter router cutter. allows the true cutter path to be drawn onto the worktop to give the cutting edge position when fitting awkward design kitchens. scribes directly onto the worktop and is designed to remain stable throughout the scribing process. can be fitted with different grades of pencil for marking onto varying work surfaces and has an easy grip gnurled shaft for easy handling. related products::. Trend worktop jig 225-616mm kitchen&bath tr_combi600. Trend postform jig 650 peninsular 257004 tr_combi651. Trend worktop jig 1000mm cw cti 257005 tr_combi1002. Trend kitchen worktop jig 900mm tr_kwj900.