Parallel stop: T-shaped, adjustable, suitable for all common pin connections with diameters of 6 mm, 8 mm and 10 m Wood dowel drill auxiliary tool drilling jig is suitable for surface, corner and T-shaped connection, quick, easy and accurate pin drilling success Hard plastic pin gauges for producing precisely assembled connections, such as plywood, solid wood and particle board 6-12 mm drill sleeve and center point can accurately drill the appropriate hole size suitable for woodworking needs Woodworking guide drilling jig, 6 x Positioning Pin Diameter 6/8/10mm Drilling Depth 7x Stop Ring Locator, with Hex Key, for Wood Drill, 3-12mm Packing List: 1 x Extended Locator 7 Drill Stop Rings (3mm 4mm 5mm 6mm 8mm 10mm 12mm) 1 Hex Key 1 Set of Anchor Device (2x6mm, 2x8mm 2x 10mm)