Border Model Grinding PEN size:2mmx2mm *2 (600# 1000#)Introducing the Border Model Grinding Pen, a precision tool designed for detailed modeling work. This set includes two grinding pens, each with a compact size of 2mm x 2mm, making them perfect for reaching those hard to access areas on your models. The set comes with two different grit sizes, 600# and 1000#, allowing for both coarse and fine grinding. Whether you're cleaning up seams, smoothing out surfaces, or creating textures, these grinding pens