Advanced Hole Precision – Create perfect woodworking holes, repair wood joints, and accurately pre-drill pilot holes at the right angle before connecting wood boards. Adjustable Depth Setting – Each pocket hole jig kit features an easy drill depth knob to let quickly adjust to the thickness of the wood to avoid damage, splinters, or splits. Extra Carpentry Accessories – We’ve added a hex key, stop collar, set of screws, establishing Bars, for easier work with longboards, drill bit to help set the right depth, make a few choice jig holes, and start creating DIY projects. Heavy-Duty Aluminum Body – The Massca pocket hole jig set uses a well-balanced aluminum frame to ensure a reliable woodworking support base in shops or garages. Dust Spout Connector – Easily capture loose debris, particles, and saw dust while creating your jig pocket hole to reduce allergens in the air for dust free drilling.