Dark Horse Rotary Hand assembled and made from space grade aluminium also CNC machined. Motor and Max RPM - 13V Japanese Kyosho Motor & 1000RPM Suggested Voltage Setting - 5.5V to 6.5V Needle Stroke - 0 to 3.5mm adjustable stroke & needle clip stabilizer built into the slide. Machine Connection - DC Connection. Pen Power Cord - DC Cord included. Warranty - 6 month manufacturer warranty. (does not cover damage to motor from ink blow black)