Supplied as a 10-piece kit, these 0.035-inch (0.9 mm) MIG contact tips are made from copper-chromium-zirconium alloy and built with a heavy-duty design. They are intended for use with NORTH MPG and MPW push-pull guns, PARKER spool and push-pull guns, and SN-36 and 36-series MIG guns, making them a practical choice for welders working with those systems. Their Cu-Cr-Zr construction is well suited to demanding MIG welding applications where a durable, reliable tip is needed.