Specifications:
Type: Inside micrometer
Measuring Range: 5mm~30mm
Material: Stainless steel
Weight: 268g(approx.)
Zero:
Clean the surface of measuring anvil heads with a soft cloth, then rotate measuring device to make two measuring surface. If two zero lines of differential sleeve and fixed do not alignment, use the following two methods to adjust.
Method I, if the error is less than 0.02mm (0.001), use ratchet stop to lock screw tightly, then use wrench to pull fixed till two zero lines alignment.
Method II, if the error is greater than 0.02mm (0.001 ),
Step1, use ratchet stop to lock screw tightly, then use wrench to loosen the ratchet stop and remove differential sleeve.
Step2, re-align zero lines of fixed differential sleeve, then put ratchet stop back on. If necessary, adjust it again using method I.
There is no need to calibrate micrometer during common use. Micrometer only need calibration when it is severely worn.
Package Includes:
1 x Inside Micrometer
1 x Wrench
1 x Calibration Rings
1 x Packing Box