For standard 3.175mm shank drill bit and easily replaceable 6mm wide edges, it ensures drilling and edges finishing operations The multipurpose processing assistance platform for vertical drilling, chamfering, and alignment tasks, crafted from lightweight yet durability aluminum alloy for long lastingly Ideal for scale model builders, diyer enthusiasts, and hobbyists requiring reliabled precise tool for detailed fabrication or miniature engineering Perfect for workshop base or model making stations, this tool simplifies angled drilling and chamfering rod in prototyping or repair scenario Adjustable sliding block with engravedly scale ensuring accurate alignment of rod ( 1.5-10.5mm diameter), while the 0-34mm rulers attachments enables consistent hole spacing for repetitive projects, Manufacturer: JDNH