About this item Multi-function scriber: can mark the center of the plate with a thickness of 64 mm, move the scribe to draw 1/16 inch, 3/16 inch, 5/16 inch, 7/16 inch, 1/8 inch, 1/ 4 inch, 3/8 inch, 1/2 inch edge Magnetic bottom: precision marking tool can be attached to the iron surface, and you can put the pencil in the foot hole, convenient to use and storage Good material: line scriber is made of ABS plastic, harmless to your body, durable and easy to use, please feel free to use it Measurement: 100 x 58 x 50 mm/ 3.9 x 2.4 x 2.0 inches, this woodworking tool can quickly and accurately mark center lines on wood board up to 64 mm/ 2.5 inch, the diameter of the foot hole is about 7.2 mm/ 0.28 inch Wide application: suitable for plate grooving, pin joints, assembly work, making reference lines for drilling holes, marking out mortises and rabbets, etc.