Shop › Pen / Pencil Jig for Fiber Laser Engraving. 3D printed from PETG plastic. Holds 6 pieces Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Pen / Pencil Jig for Fiber Laser Engraving. 3D printed from PETG plastic. Holds 6 pieces $19.00 This is a simple jig to hold pens or pencils for engraving on your fiber laser. Has 2 bolt holes (bolts not included) and holds 6 pieces. 3D printed from PETG plastic Add To Cart Added! This is a simple jig to hold pens or pencils for engraving on your fiber laser. Has 2 bolt holes (bolts not included) and holds 6 pieces. 3D printed from PETG plastic