B-109BMitutoyo operates a policy of continuous improvement that aims to provide the customer with the benet of the latest technological advances.Therefore the company reserves the right to change any or all aspects of any product specication without notice.Micrometer HeadThe origin of Mitutoyo’s trustworthy brand of small tool instruments Micrometer HeadsSERIES 250 — Digit Counter type• Digit counter for easy reading of spindle movement. • Carbide measuring face.Micro JackSERIES 7• Used for accurate leveling of machines, surface plates, and other precision instruments.• Zero-setting is possible at any position.• Easy adjustment under heavy load.DIMENSIONSDIMENSIONSUnit: mmUnit: mmPlain stem( ): with spindle fully retracted250-301Mass: 165g000099mm15(17)4293.8(118.8)ø18ø10ø6.350–0.0090545Ratchet Spindle lock26.815ø40(Recessed)ø64ø15608(85)SR1×90°SPECIFICATIONSMetricOrder No.RangeGraduationAccuracyStem dia.StemSpindle endSpindle pitchGraduation features250-3010 - 25mm0.01mm±2µm10mmPlainFlat (carbide tip)0.5mm—InchOrder No.RangeGraduationAccuracyStem dia.StemSpindle endSpindle pitchGraduation features250-3120 - 1".0001"±.0001".375"PlainFlat (carbide tip).025"Vernier scaleSPECIFICATIONSMetricOrder No.RangeGraduationHandle power at the max. loadingRemarks785060 - 75mm0.01mm90 NMax. load: 400kg


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