VEVOR Metal Shear/Cutter Drill Attachment, Sheet Metal Cutter with 360-Degree Pivoting Head, Sharp Blades,Ideal for 18 GA Galvanized Steel, 20 GA Stainless Steel, Aluminum Plate, Plastic, Cardboard
The +/- adjustment on the side of the cutting head is used to adjust the blade gap, allowing you to optimize performance for various material thicknesses.