Sure accessories as the guide are poor even if the product is taken down here does not justify a guide completely wrong, the scenes are not enough screws to keep the metal guides therefore not stable guide, the user manual is very poor, very few understandable explanations on the functioning of the unit. After his price is low as its quality therefore good value for money final! It does not allow meticulous work (Do not use it to insert a keeper in a door edge such as unstable and unbalanced guide device) but very effective against carvings panels, moldings with a wooden guide added by you!