400mm Aluminum Alloy Milling Grooves Bracket with Base Detachable Woodworking Router Circle Jig Hole Opener for Trimming Machine Carpentry Circle Cutting Positioning Guide Board Tools It can quickly grooving and cutting round arcs, suitable for woodworking trimming. Multi-functional design, support milling round grooves, cutting round blocks, carving round centers. The aluminum alloy base is detachable, after disassembly, it can be installed in the trimming machine as the base of the trimming machine. By connecting the extension pole(purchasable), it can be extended up to 0.6 meters. Adjustable hole opening ranges can be applied to a variety of hole spacing sizes to meet the needs of different scenarios. Suitable for all types of wood panels, such as MDF, chipboard, blockboard, etc. Features: 【Utility Woodworking Tool】: Woodworking professional milling round grooves cutter, can quickly grooving and cutting round arcs, suitable for woodworking trimming. Fast positioning, can mill straight edges, and can mill round radius length up to 350mm.  【Multifunctional Designed】: Multi-functional design, support milling round grooves, cutting round blocks, carving round centers. In addition, purchase the slotting and milling edges positioning block can mill straight edges. 【Premium Aluminum Alloy Material】: It is made of thickened aluminum alloy, high-temperature forging, high hardness, not easy to rust, not easy to deform and damage, with long durability. 【Detachable Design】: The aluminum alloy base is detachable, after disassembly, it can be installed in the trimming machine as the base of the trimming machine, providing more possibilities of use. 【Purchasable Extension Pole】: By connecting the extension pole, it can be extended up to 0.6 meters. Adjustable hole opening ranges can be applied to a variety of hole spacing sizes to meet the needs of different scenarios.  【Cuttable Materials】: Suitable for all types of wood panels, such as MDF, chipboard, blockboard, etc. Specifications: Name: Circle Milling Tool Material: aluminum alloy Type: 400mm milling tool, 400mm milling tool+edges milling block, 400mm milling tool+extension pole, 400mm milling tool+edges milling block+extension pole (optional) Item size: 445 * 80mm / 17.52 * 3.15in Item weight: 400mm milling tool: 244g / 8.61ounce 400mm milling tool+edges milling block: 302g / 10.65ounce 400mm milling tool+extension pole: 352g / 12.42ounce 400mm milling tool+edges milling block+extension pole: 411g / 14.50ounce Package size: 450 * 90 * 90mm / 17.72 * 3.54 * 3.54in Package weight: 400mm milling tool: 260g / 9.17ounce 400mm milling tool+edges milling block: 322g / 11.36ounce 400mm milling tool+extension pole: 372g / 13.12ounce 400mm milling tool+edges milling block+extension pole: 430g / 15.17ounce Packing List (E25600-1): 1 * Circle Milling Tool OR Packing List (E25600-2): 1 * Circle Milling Tool 1 * Edges Milling Block OR Packing List (E25600-3): 1 * Circle Milling Tool 1 * Extension Pole OR Packing List (E25600-4): 1 * Circle Milling Tool 1 * Edges Milling Block 1 * Extension Pole