Features Tubular Micrometer measures the inside dimensions of cylinders, rings, and parallel surfaces Vernier scale in metric units for taking precise inside dimension (ID) measurements Includes interchangeable extension rods for a diversified range of measurement Slow head travel helps provide fine positioning Solid extension rods help provide durability Lead Time 170 Warranty Code 07 Item Micrometer Indent Time 120 Specification Gradient Spacing : 0.001IN Measurement Accuracy : +/-5.00036IN Maximum Measurement : 2-12IN Range : 2-12IN Resolution : 0.001IN Size Name : 2-12IN