Lenk’s Quick FX3 Heat Tools are known for three main functions: quick charge, quick heat, and quick change. Powered by rechargeable lithium ion batteries, these lightweight hand tools fully charge within 3.5 hours using the included USB cord. They offer a fast 10-second heating time and a generous continuous working time. Quick FX3 Heat Tools are cordless so you can take these amazing tools virtually anywhere. With interchangeable tips, Quick FX3 Heat Tools change quickly to deliver multiple functions for cutting, carving, and shaping foam core board, plastic, wax, soap, synthetic material, and more! The Hot Knife features a maximum temperature of 1100°F and makes up to 200 cuts with a single charge! The Heat Shrink Tool’s maximum temperature is 600°F and provides 45 minutes of continuous work time.