Trend GB/COLL/7914 Guide bush collar 7.9mm to 14.28mm Aluminium guide bush collarsAluminium collar to fit guide bushes. Enables single shaped templates to be used to cut perfectly matching pocket & inlay. Collars have integral rubber \'O\' rings to ensure collar secures onto guide bush. Templates should be made with suitable sized corners for the collar being used. The correct diameter straight cutter as indicated should always be used.Fit to GB793 to give 14.3mm (9/16 inch) OD. Use with 3.2mm (1/8 inch) cutter.Guide bush not included.Specification-7.9 mm - 14.28 mm