説明

• Features: High quality alloy measuring heads can be used for various inner length measurement, nice workmanship and no burr laser marking line for convenient reading main micrometer physique is manufactured from chrome steel with chrome plated surface, wear-resisting and sturdy with locking device, exact machinery constitution make it more intuitive and handy to learn ratchet stop machine guarantees correct repetitive readings Specifications: Type: Inside micrometer Measuring Range: 5-30mm/25-50mm/50-75mm/75-100mm Material: Stainless stee Zeroing:Clean the outside of measuring anvil heads with a delicate cloth, then rotate measuring machine to make two measuring floor contact If two 0 traces of differential sleeve and fixed barrel do not alignment, use the following two the right way to adjust I, if the mistake is lower than 0 (0"), use ratchet stop to lock screw tightly, then use wrench to tug fixed barrel till two zero traces alignment II, if the error is greater than 0 (0 "),Step1, use ratchet stop to fasten screw tightly, then use wrench to loosen the ratchet stop and remove differential sleeve, re-align 0 traces of fixed barrel and differential sleeve, then put ratchet give up again on If necessary, adjust it back using formula I: There is not any need to calibrate micrometer during common use Micrometer solely want calibration when it is significantly worn Package Includes: 1 xDigital Inside Micrometer 1 x Wrench 1 x Packing Box Note:5-30mm electronic micrometer is equipped with a 5mm ring gauge25-50mm digital micrometer is equipped with a 25mm ring gauge50-75mm electronic micrometer with out ring gauge75-100mm digital micrometer with out ring gauge

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