b'd eptHg ages3753a e lectronicd eptHg ages( non output )0-12"/0-300MM 3753 shown withoptional 3648-180 base The 3753 is light and easy to use for depth measurements within its range. extension attachmentr eadabilityF eatures Clear, easily-read numbers, properly sized for the toold esignF eatures Fora ccuracy andl ongl iFe Linear accuracy: .0015" (0.03mm)aGes epth Resolution: .0005" (0.01mm) G DExclusive Starrett-designed microprocessor chip Hardened stainless steel body and slide for long life Fine adjustment thumb roll for precision measurements Lock to hold the slide in position Hardened base is 3-15/16" (99mm) long, but optional base extensions of 7" and 12" (175 and 300mm) are available. Spacing between holes is 2-3/4" (70mm). A hook attachment is furnished with the gage, making it possible to take readings from the edge of a workpiece to edges of slots, grooves, shoulders, and other I.D. length dimensioning. The removable hook has the screw permanently attached to prevent loss. One-year minimum battery life with furnished 3-volt battery, CR2032a ctionF eatures witHt Hreec ontrolb uttons Inch/millimeter conversion Zero at any position Manual ON/OFF plus a built in auto OFF after 15 minutes of nonuse3753A Electronic Depth GagesCat. No. EDP Description3753A-6/150 12258 0-6"/150mm Range, Depth Gage in Case3753A-8/200 12259 0-8"/200mm Range, Depth Gage in Case3753A-12/300 12260 0-12"/300mm Range, Depth Gage in CaseAccessories for 3753A Electronic Depth GagesPart No. EDP Description3648-180 12261 180mm Base Extension3648-260 12262 260mm Base Extension3648-320 12263 320mm Base ExtensionPT99492 65650 Two 3-Volt Batteries, CR203236'