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120M-300 Dial Caliper 64511

120, 120M Dial Calipers
Dial Slide Caliper, Stainless Steel, 0-300mm Range, 0.02mm Graduations

The Starrett 120M Series Dial Calipers are the only American made dial calipers. These calipers are used by mechanics and toolmakers everywhere. Features include direct reading, ease-of-handling, reliability and accuracy making these one of the handiest measuring tools available. This series features yellow dial, 0-300mm range, and 0.02mm graduations. 300mm, yellow Dial, without Case.

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  • Only American Made Dial Caliper
  • Direct reading, reliable and accurate
  • Sharp, clear dial graduations
  • Sharp, black graduations on the satin finished bar
  • Knife-edge contacts for both inside and outside measurements
  • One hand use with the thumb-operated, fine adjustment roll
  • Lock screw for dial bezel and Lock screw for holding sliding jaw in position
  • Hardened stainless steel bar, measuring surfaces, rack and gears
  • Positive, split-gear anti-backlash control


  • Made in America: Yes
  • Range (mm): 0-300mm
  • Graduations (mm): 0.02mm
  • Revolution Range (mm): 2mm
  • Construction Material: Stainless Steel
  • Dial Color: Yellow
  • Inside Jaw Depth (in): 3/4"
  • Inside Jaw Depth (mm): 19mm
  • Outside Jaw Depth (in): 2-1/2"
  • Outside Jaw Depth (mm): 63mm
  • Accuracy (mm): 0-150mm (+/-.03mm); 150-300mm (+/-.04mm)


    Catalog 33 - Section 2 - Slide Calipers

    Our calipers are light, comfortable, easy-to-use, and constructed with features that have made Starrett slide calipers the machinist's first choice for many years.

    Precision Hand Tools (Catalog 33)

    612 page catalog featuring precision hand tool, force measurement, vison systems, optical comparators, laser measurement, and flat stock.

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Product Testimonials

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      Member of Kit
      Item #DescriptionPart No.QtyInformation
      1BAR, 300MM #120-300NOT AVAILABLE1
      2JAW, SLIDING #120-12NOT AVAILABLE(2)1
      3SCREW, #1-64 SLOT X .082PT068392
      4SCREW, #3-56 SET X .156 LONGPT190231
      5SCREW, #3-56 SET X .125 LONGPT192141
      6SCREW, #3-56 LOCK X .223 LONGPT190241
      7STUD, FINE ADJUSTING22155-01
      8RACK #120MB24941-02
      9SCREW, 1/16-64 SLOT X .085 LONG10956-012
      10CASE, INDICATOR-MET.19234-01
      11SPRING, DETENT22080-01
      12SCREW, 1/16-64 SLOT X .065 LONGPT190512
      13GEAR ASSEM 120-150 #120AMPT991381
      14•GEAR,ANTI-BACK #120MPT192291
      15•RACK PINION ASSEM. #120AM26553-01
      17PINION, HAND #120MPT192301
      18BRIDGE, #120M19231-01
      19SCREW, .042-120 FHCS X .094 LONGPT054651
      20SCREW, .042-120 SLOT X .094 LONG22239-01
      21O-RING, RETAINING23534-01
      22DIAL #120M27070-01
      23HAND, #120PT190351
      25•BEZEL, #120PT190421
      26•CRYSTAL, #120PT190431
      27CLAMP, BEZEL LOCK22165-01
      28SCREW, #2-64 CLAMP X .402 LONG27155-01
      29PAD, SLIDE STOP22168-01
      31PLATE, COVER 120M-30027768-01
      32GIB, SLIDE COPPER28225-01

    California Proposition 65 Warning

      WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: