Parallel plug: T-shaped, adjustable, suitable for all common pin connections with diameters of 6 mm, 8 mm and 10 m Made of plastic Impact-resistant ABS, with high hardness and strength, very wear-resistant. Fits most hand drills. Self-centering clamps and adjustable fences allow precise alignment of locating pins for maximum bond strength. Allows quick and precise connection of corners, edges or surface joints with dowels. The metal ring provides precise alignment while drilling to accurately locate pins. It can be used on boards up to 1/2" thick. 1-1/4 inches. For the production of precision assembled connectors, such as plywood, solid wood and particle board Color:41 Pieces Blue Fast clamp, self-centering on the board, to locate the seam quickly and precisely. Able to connect from side to side, T-shaped and side-to-side. Made of impact-resistant plastic. It can be used on boards up to 1/2 to 1-1/4 inch thick. Suitable for dowel drill bits. Suitable for 6 x 8mm and 10mm drill bits. Specification: Material: plastic metal Size: 7.87x2.76 inches Blue color Package includes: 1 x Woodworking Positioning Device 3 x Limit Ring 1 x wrench 3 x drill 30 x positioning pins 3 x positioning drill Note: < p>1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before you bid. 2. Due to the differences between different monitors, the picture may not reflect the actual color of the item.