Micrometer Heads The following pages show the full line of Starrett standard micrometer heads that have been designed and developed over the years working with the needs of our customers. The micrometer heads are invaluable for use on electronic equipment, machine tools, fixtures, special gaging and other equipment where precise movement and adjustment are required. Dimensional specifications are available upon request. Special features are described with each tool, but all of these tools have these features that benefit the user: • Starrett satin chrome finish – no glare – resists rust on all reading surfaces • Advanced sleeve design with staggered lines and distinct figures for precise and easy readability • Quick-reading figures on all inch reading tools • Extremely hard and stable one-piece spindle (the heart of our accuracy and long life) • Micro-lappedmeasuringfaceforflatnessandsquareness • Quick and easy adjustment Special Heads In addition to standard micrometer heads, Starrett has also designed and manufactured many special types of micrometer heads for widely diversified applications requiring micrometer accuracy in settings and adjustments. These special heads are designed to exact specifications for specialized usage with wave meters and other equipment in the electronics industry, machine tools, fixtures, special gages, tools, and all special mountings. They can be furnished to suit your particular requirements in a wide choice of sizes, range and graduations. We design and build to your special need, so if you don't see what you want, please ask for it. For quotations or recommendations, write: The L.S. Starrett Co. Special Order Department 121 Crescent Street Athol, MA 01331 261L Micrometer Heads with Non-Rot a ting Spindles 0-1/2"/0-13MM Because the spindle does not rotate, these tools are useful in driving positioning tables directly without an intermediate connecting device.They are also useful in gaging jobs where scratches on the work surface cannot be tolerated or where there is risk of distortion when spindle meets work – as in measuring soft or elastic materials. Spindle wear is also reduced since there is no rotational friction as its face contacts the work. • Ring-type lock nut for quick and sure locking at any setting • A speeder for quicker adjustment – this is not a ratchet stop. The tool is dependent on your own "feel" 261L Micrometer Heads (9.522") (9.512") ( ) .200" (5.08) 3/4" (19.0) 3/8" (9.5) 3-7/8" (87) WHEN SET ON ZERO 1-7/8" (48.0) 55/64" (22) 35/64" (14) 21/64" (8.3) (+.000) (-.007) 9.500 or 10.000 261L (0-1/2") and 261ML (0-13mm) dimensions 261L Micrometer Heads (0-1/2" Range) Cat. No. EDP Graduation Description 261L 55944 .001" Speeder, lock nut 261ML Micrometer Heads (0-13mm Range) Cat. No. EDP Graduation Description 261ML* 64346 0.01mm Specify clamping diameter (9.5mm or 10mm) *9.5mm clamping diameter sent unless otherwise specified. 63 starrett.com M icrometers