/ Precision Measuring Tools / Precision Hand Tools / Micrometers / Special Function Micrometers / 575AP * Not actual product image 56159 575AP Screw Thread Micrometer 56159 Other similar products The Starrett 575 micrometers have a pointed spindle and a double V-anvil, both shaped to contact the screw thread. The micrometer reading therefore gives the pitch diameter. 0-1" Range, .001" Grad, 7-9 TPI. Features Specifications Parts Contact Starrett Features No glare Starrett satin chrome finish Advanced sleeve design with staggered lines and distinct figures for precise, easy readability Balanced frame design for comfortable, accurate measuring Tapered frame for narrow slots and tight places Furnished with fixed, non-rotating anvil One-piece frame of drop forged steel Extremely hard and stable one-piece spindle Quick and easy adjustment Design allows 50% to 75% contact with the thread to be measured, insuring contact with the pitch diameter at all times For measuring American Unified National series and Unified J series screw threads Series 585 micrometers come with a one-inch standard at no extra cost Decimal equivalents on inch tool Specifications Micrometer Type: Screw Thread Micrometer, 7-9 TPI Range (in): 0 - 1" Capacity Pitch Diameter Graduations (in): .001" Anvil/Spindle Material: Steel Anvil Type: Double V-anvil Spindle Type: Pointed spindle Parts Member of Kit Item #DescriptionPart No.QtyInformation 1FRAME SUB ASSEMBLYNOT AVAILABLE1 2SPRING, BARREL10058-01 3SHELL, ADJUSTINGPT051341 4NUT, .375-52PT164141 5SCREW, .157-40 SLOT X .377 LONGPT051361 6SPINDLE, 7-9 PITCH19340-01 7ANVIL, FIXED19322-01 8SHELL, OUTSIDE 7-9 PITCH19328-01 9WRENCH #3PT015261 10CASE,PLASTIC 1" MICSPT249161NOT SHOWN