Item Type: Center Angle Gauge_x000D_ Material: Stainless Steel_x000D_ Specification: Approx. 150 x 130mm/5.9 x 5.1in_x000D_ Diameter Range: 4-90mm/0.2-3.5in_x000D_ Tolerance: 0.15mm_x000D_ Uses: Widely used in hardware machining, cylindrical centering and marking, angle marking, marking discs, etc. 1Forged with high?quality stainless steel, it has high hardness, strong toughness, rugged and durable. 2Thickened design, painted with varnish, effectively prevent the ruler body from abrasion. 3Laser scale, clear reading. High accuracy, small tolerance, which is reliable to use. 4Suitable for 45 angle, 90 angle and circular center marking, multifunctional and convenient. 5Widely used in hardware machining, cylindrical centering and marking, angle marking, marking discs, etc. 1 x Angle Ruler 1 x Cover