Enables mortise & tenons and dowel joints to be cut with a router. Material thickness min. 12 mm Material thickness max. 47 mm Tenon thickness min. 4.8 mm Tenon thickness max. 16 mm Tenon width max. using vertical guide+ 90 mm Tenon length max.++ Approx. 25 mm Mortise length max. using vertical guide+++ 90 mm Angle tilt compound -10 degree to 45 degrees + on end of 100 mm wide material. This product includes: 5 x Plastic guide bushes 15.9mm, 22.2mm, 28.6mm, 30.2mm & 31.8mm 1 x Metal guide bush 25.4mm 4 x Clamps 1 x Guide bush collar 1 x Set-up Bar imperial scale