[Fast, simple, precise]: The self-centering dowel gauge arms are a consistently reliable parallelogram that always finds neutral. Simply align the precision notch on the center bar of the device with the dowel position marking on your board, hold the device and drill Spring clip: This portable device has a longer fence that makes tightening easier. It also has a ruler on the side of the device, drilling template to allow faster adjustment of the fence; The fence allows depth adjustment from front to back; The fence is slotted to align the pass pins [Reduce woodworking error] The metal bushings of the metal bushing drill guides ensure precise alignment when drilling for perfectly positioned dowels, a drilling guide; table clamp - Minimal construction with no exposed or covered mechanics Drill stand: With practical carpentry, you can work more comfortably for woodworking; drill grinder; It is a great tool for furniture and wood factory enthusiasts [Simplify drilling work]: Quick dowel gauge, drilling aid that will center on boards to create quick connections and dowels to create edge connections and tee fittings Note: The data is all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received.