B-88BMitutoyo 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.Technical DataGraduation: 0.01mm or .001"Spindle pitch: 0.5mm or .025"Micrometer HeadsSERIES 149 — Small Standard Type with Carbide-Tipped Spindle• Carbide-tipped spindle provides high abrasion resistance. DIMENSIONSPlain stemMass: 55gPlain stem and spindle lockMass: 55gUnit: mmPlain stemPlain stemPlain stemPlain stemPlain stemPlain stemSpherical faceSpherical face149-132(17)150545ø9.5 0-0.009ø6.35ø1543.5(58.5)32Set screw3.5149-1830545ø15 Spindle lock(11.5)9.5ø6.3549(64)26.5Set screw3.5ø15ø9.5 0-0.009Spherical face149-801Reverse reading 149-8210 5 45 Spherical face149-803Reverse reading149-8230 5 45 *2 Other dimensions are the same as 149-183. ( ): With spindle fully retracted.*1 Other dimensions are the same as 149-132.SPECIFICATIONSMetricInchOrder No.RangeAccuracyStem dia.StemSpindle endGraduation featuresOrder No.RangeAccuracyStem dia.StemSpindle endGraduation features149-1320 - 15mm±2µm9.5mmPlainFlat (carbide tip)Standard149-1480 - .5"±.0001".375"PlainFlat (carbide tip)Standard149-131W/ clamp nut149-147W/ clamp nut149-183Plain*149-185***Plain*149-184W/ clamp nut*149-182W/ clamp nut*149-801PlainSpherical (SR4)(carbide tip)149-811PlainSpherical (SR4)(carbide tip)149-802W/ clamp nut149-812W/ clamp nut149-821PlainFlat (carbide tip)Reverse reading149-831**PlainFlat (carbide tip)Reverse reading149-822W/ clamp nut149-832**W/ clamp nut149-803**Plain*Spherical (SR4)(carbide tip)Standard149-181**Plain*Standard149-804**W/ clamp nut** with spindle lock ** made-to-order model *** w/rachet (149-181) is available149-823**Plain*Flat (carbide tip)Reverse reading149-824**W/ clamp nut** with spindle lock ** made-to-order models*1*2*2*1SR4SR4


page 141