True Blue vials are accurate to within 0.00005" per inch in all 10 level and plumb working positions. Super-strong anodized I-beam frame with shock-absorbing end plates and strong-holding magnetic edge. Solid block acrylic vials wont break, leak or fog.
Full-length, recessed magnetic strip for hands-free use on ferrous metals. Black anodized extruded aluminum frame. Shock-protecting plastic end-caps, 360 degrees reading, barrel vials fit into precision-stamped cutouts held in place by Quick-Change ABS plastic vial covers. Screwed in clear acrylic lenses for easy access and replacement. "Level" vial features large top read window.
1550 series. Dual chamber design increases level durability, ensuring accuracy over time. Resists twisting. Dual sided, undistorted viewing in the plumb position and easy more accurate readings. Magnets allow for easy, hands free steel construction work.