Center Line Gauge - Alloy Steel - For 4 In 6 In 8 In Calipers - Scribing And Center Finding - Set Of 2 With Wrench

These center line gauges are essential layout tools for machinists, fabricators, and DIY metalworkers. Made from high-hardness alloy steel, they resist deformation and maintain accuracy over time. They help locate true center lines, measure distances between holes or from hole to edge, and support precise scribing operations. Compatible with standard calipers having 4-inch, 6-inch, and 8-inch jaw capacities. Each set contains two center line gauges and one adjustment wrench — no additional tools required for installation or calibration.