Brand - Bronc by Hummingbird. Voltage - 5 - 9 Volts Motor - Swiss Made Motor,Maxon Motor. Detachable motor bolt for ease of maintenance. Weight - 95 grams Needle Stroke - 3.8mm Product Description - CNC machine body from aircraft aluminum, bright finished & anodized. Lubricating the machine every two or three weeks is recommended. No cartridge grip included in the box.