Self Centering Dowel Jig Kit, Drill Guide Jig Block for Straight Holes... FLEXIBLE ADJUSTMENT: Our wood dowel jig can clamp a wide range of wood blocks from 0., 4 to 2., 4 inches, either round or square. PACKAGE INCLUDES: You will get a professional self centering dowel jig, 6 rust-resistant steel bushings (2x 1/4”, 2x 3/8”, 2x 5/16”), an instruction manual WIDE APPLICATION: This dowel jig kit can be used for mortise and tenon joints, building wooden furniture, installing railings, and is a must-have tool for diy enthusiasts and professional woodworkers WELL MADE: This doweling jig is made of aircraft-grade aluminium alloy and heat-treated 45 steel, with excellent characteristics of ultra-high hardness and resistance to deformation, ensuring that it will serve you for a long time 1pc abs straight hole drill guide dowel jig self centering - Italy Ujk Drill Guide Self Centering Dowel Jig Set With 6 Adjustable Drill Guide Bushings, Straight Hole Drill Jigs For Biscuit Joinery | US Adjustable Dowel Jig Kit