M810 Drill Gauges Ezi Sizer Sutton Tools Ezy Sizer gauge is used for measuring gauge and length of wood, self-tapping metal thread screws, bolts, wall plugs & drill sizes. Sutton Tools Pro-Series multi-function gauge is a super-handy measuring tool for fast and accurate identification of drills, fasteners, nuts and threads. Bonus conversion chart Drill bit gauge metric and inch diameters Thread pitch gauge Made of durable ABS plastic and Aluminium (Pro-series) Saves time and helps prevent sizing errors.