Designed for enthusiasts, professional craftsmen, and small workshops requiring practical tool for intricate aluminum extrusion projects Integrated guides and a precisions hole punching jig ensures accurate positioning with less than 0.5mm deviation, eliminating post drilling adjustments for professional result The adjustable copper column and modulars design enable seamless compatibility across multiple profile widths, unmatched versatility for industrial and hobbyist metalworking applications Achieve holes in 20 / 30 / 40 series aluminum extrusion profile during furniture assembly, architectural installations, or workshop fabrication with easy setups and portable operations Crafted with HRC60 hardened stainless steel drill bits, this aluminum profile step drill penetrates up to 6mm thick aluminum, offering double the lifespans of conventional steel drills for long lasting, Manufacturer: XAGMODSHN