Ideal for gauging clear oils Etched background Blade protected by flowed-on epoxy coating Raised bright steel markings are clearly legible All tapes read right to left, except 3/8" x 50' reads left to right Heavy-duty frame designed for years of rugged use All frames include a grounding strap Plumb bob must be ordered separately Recommended Plumb bob: 590, 590G Blade style: D5