Features: Universal Applications: This trimming machine cutter head is suitable for wood, aluminum-plastic board, integrated wall folding, slotting, corner folding, round bottom groove forming, bottom digging. Material: Our cutter heads are made of high-quality carbon steel materials with wear resistance and long service life. Lightweight Design: This head adopts lightweight material which is very light on your hands. Easy to Use: Just take out the cutter heads and use it in your work, a very convenient set for you. Rust Proof Set: This cutter heads adopts high quality material which will avoid rust well. Specifications: Material: Carbon Steel, Alloy Size: 1/4*1/4 or 1/4*5/16 or 1/4*3/8 or 1/4*1/2 Function: Trimming Machine Cutter Head Package List: 1 * 1/4*1/4 Trimming Machine Cutter Head or 1/4*5/16 Trimming Machine Cutter Head or 1/4*3/8 Trimming Machine Cutter Head or 1/4*1/2 Trimming Machine Cutter Head or 4pcs * Trimming Machine Cutter Head