Handy router can groove straight lines and curving lines. The suitable bit and operating conditions are as follows: Router bit: Number of teeth: 2-4 Material: carbide tip Operating conditions: Rotation: 20, 000-30, 000rpm Feeding speed: 3-5m/min. Its important to make the v type slotting process with a distance of 0.2-0.4mm from the polyethylene substrate. Features: Super quality. Safe. Portable. Economical. Simple processing method.