[RL-068] Relife Mini Multifunction Polishing Pen for Mobile Phone CPU Motherboard Repair Screen IC Polishing Grinding Grinder ToolRL 068 Mini Multifunction Polishing Pen for Mobile Phone CPU Motherboard Repair Screen IC Polishing Grinding Tool RRELIFE RL 068 Mini polishing Pen 1 . Solve the problem of traditional grinding pen shake , no shake rotation at high speed, and safer grinding chip . 2. Configure 8 different specifications, suitable for repair chip IC grinding, cutting motherboard, bracket, grinding border, etc 3. 6 Speed adjustment to meet different operation