Description 08400 Upgraded Dowelling Jig Set High Precision Woodworking Tool Drill Guide DIY Hole Drilling Locator Tool Kit Door Making with Dowelling Jig Dowelling Jig Instructions - Making a Simple Frame Dowelling Jig Instructions - Butt Joint There are locking function, Equidistant extension rod functions, gullets functions. Product Name: log tenon punch / punch triple connections Type: Wrenches, Drills, Combination, Knives, Pliers Use adjustment size range: log tenon: 10-150mm; triple: 25-40mm Body Material: Aluminum 6061 Surface treatment: anodizing Color: blue Log tenon drill bushing: 6/8 / 10mm (5PCS) Log tenon drill sleeve fixed template: 3PCS Triple eccentric bit holder: 15mm eccentric drill bushing Size adjustment nut: Brass nut Digital scale: Laser engraving 1set Now buy one dowelling jig kit set, you can get one set of Drill Bits and Stops(1pcs 6mm, 8mm, 10mm, 12mm and 15mm each) and some Dowel Pins free of charge