Hatchback Irons Coil Tattoo Machine — Sledge Liner The Hatchback Irons Sledge Liner coil tattoo machine is designed for crisp linework. This coil machine pushes 5 to 18 round liners and boasts a specialized cut-out armature bar designed specifically for power lining. Traditional, neotraditional, and new school tattoo artists can count on this machine to create super bold linework. The Hatchback Irons Sledge Liner coil tattoo machine features a CNC-machined frame built from one piece of 10/18 steel. It has 18-gauge laser-cut blue steel springs and a silver contact screw. Specifications: CNC-machined frame; built from one piece of 10/18 steel 1” 8 wrap coils; 24-gauge wire around a 3/8 99.9 pure iron core with 47 capacitor 18-gauge laser-cut blue steel springs; no need for bending Features a silver contact screw Specialized cut-out armature bar Great for shading and color packing Voltage Range: 5.2v–7.5v Pushes 5–18 round liners