Efficient to Use How to Use a Spring Divider 1. Measure the distance that you want the Spring Divider to be set 2. To lock a measurement in place, turn on the speed nut that is located on the centering collar to the desired measurement. 3. Begin doing repeat measurements without repeatedly using a ruler/measuring tape! Ideal for: Woodworking Metalworking Leatherworking Drawing and scribing circles and arcs Versatile The 8” leg length is the ideal size for craftsmen and carpenters looking for a general purpose divider. It’s not too big or not too small to take most measurements, scribing, drawing, or simply anything that comes your way. THE COMPLETE BUNDLE Each ALLY Tools Divider Kit comes with Two Pencils and One Metal Pencil Sharpener so you can begin drawing circles and arcs right away. Start on your carpentry project with ALLY Tools and Parts! ALLY Tools 12 inch Locking Wing Divider INCLUDES Two Pencils and Sharpener ALLY Tools 8 inch Locking Wing Divider INCLUDES Two Pencils and Sharpener ALLY Tools 8 inch Spring Divider INCLUDES Two Pencils and Sharpener Add to Cart Add to Cart Add to Cart Customer Reviews 4.6 out of 5 stars 357 4.4 out of 5 stars 380 4.4 out of 5 stars 330 Price $17.97$17.97 $14.97$14.97 $14.97$14.97 Length 12 Inches 8 Inches 8 Inches Type Locking Wing Locking Wing Spring Max Circle Size (Scribe) 30 Inches 20 Inches 16 Inches Max Circle Size (Drawing) 31 Inches 21 Inches 17 Inches