Features 1、[4PCS CUTTING TIPS] Including 4pcs cutting tips, with different apertures, cutting thicknesses and speeds to meet more usage needs. 2、[COPPER MATERIAL] Using excellent copper material, CNC machining, has good thermal conductivity and corrosion resistance. 3、[LARGE CALIBER] With large gas or oxygen intake port caliber, which has strong combustion supporting performance. 4、[FINE PROCESSING] These torch cutting tips are precisely processed, with uniform pores and powerful cutting. 5、[CUTTING ACCESSORIES] As accessories for acetylene flame cutting machines, these cutting nozzles are easy to use and replace. Specification Item Type: Cutting Tips Model: G02 Material: Copper Uses: Acetylene flame cutting machine accessories Aperture: 1.0mm, 1.2mm, 1.4mm, 1.6mm Cutting Thickness: Approx. 10-20mm / 0.4-0.8in 20-30mm / 0.8-1.2in 30-50mm / 1.2-2in 50-70mm / 2-2.8in Cutting Speed: 380-480mm/min, 320-400mm/min, 280-350mm/min, 240-300mm/min Product Size: Approx. 86 x 19mm / 3.4 x 0.7in Package List 4 x Cutting Tips 4 x Storage Boxes