Integrated etched guides and a precisions hole Punching jig accurate positioning with less than 0.5mm deviation, eliminating post drilling adjustments for professional grade results The adjustable copper column and modular design enable seamless compatibility across multiple widths, unmatched versatility for industrial and hobbyist metalworking applications Designed for enthusiasts, professional craftsmen, and small workshops requiring tools for intricate aluminum extrusion projects Achieve holes in aluminum extrusion during furniture assembly, architectural installations, or workshop fabrication with tool free setup and portable Crafted with HRC60 hardened stainless steel drill bits, this Aluminum step drill penetrates up to 6mm thick aluminum, offering double the of conventional steel drills for long lasting performance, Manufacturer: Msioytog