Central Tools 6009 CEN-6009 Conventional Micrometer - 0 to 1"- Thirteen models in inch and metric versions. - Simplified zero adjustment. - I-Beam frames designed to maintain dimensional stability. Powder coated. - Easy reading Graduations. - Friction stop provides uniform pressure. - Spindle lock holds spindle securely for transferring measurements. - Standards included on all micrometers above 1" or 25mm.