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  • Starrett 120AZ-9 Dial Caliper, Stainless Steel, White Face, 0-9" Range, +/-0.001" Accuracy, 0.001" Resolution
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Starrett 120AZ-9 Dial Caliper, Stainless Steel, White Face, 0-9" Range, +/-0.001" Accuracy, 0.001" Resolution


Price: $352.00 & FREE Shipping. Details
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Specifications for this item
Brand Name Starrett
Part Number 120AZ-9
Style Name Dial, Face Color White
Maximum Measurement 0-9"
System of Measurement Inch
Material Type Stainless Steel
UPC 049659645200
Color Name White
EAN 0049659645200
Import Designation Made in USA
Item Depth 1.5"
Manufacturer Series Number 120 Series
Measurement Accuracy +/-0.001"
Number of Items 1
Range 0-9"
Resolution 0.001"
Size Name 0-9" Range, +/-0.001" Accuracy, 0.001" Resolution
Special Features Thumb roller, fine-adjustment, anti-backlash control
Specific Uses For Product Inside , Outside
Specification Met N/A
Tip Description Standard
UNSPSC Code 41111600
Warranty One Year on defects in material and workmanship

The Starrett dial caliper has sharp black graduations every 0.100" on the ... Read full product description



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Product Features

  • Precise dial graduations of 0.001", with one revolution equivalent to 0.100"
  • Thumb-operated fine adjustment roll for one-handed use
  • Lock screw holds the sliding jaw in position, to ensure a consistent measurement
  • Rack teeth point down to keep foreign matter from clogging the gear
  • Knife-edge contacts for inside and outside measurements
  • White Dial
  • Sharp, clear dial graduations
  • Knife-edge contacts for both inside and outside measurements
  • One hand use with the thumb-operated, fine adjustment roll
  • Hardened stainless steel bar, measuring surfaces, rack, gears, and depth rod

Product Details

  • Product Dimensions: 1 x 1.5 x 14.4 inches
  • Shipping Weight: 7 pounds (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
  • ASIN: B0002FUMO2
  • Item model number: 120AZ-9
  • Amazon Best Sellers Rank: #314,251 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
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Product Description

From the Manufacturer

The only American made Dial Caliper. The is one of the handiest measuring tools available, used by meachanics and toolmakers everywhere. It is direct reading, reliable, and accurate

Product Description

The Starrett dial caliper has sharp black graduations every 0.100" on the no-glare, satin-finished stainless steel bar, and graduations on the dial every 0.001". One full revolution of the dial is equivalent to 0.100". These calipers have knife-edge contacts for measuring both inside dimensions (ID) and outside dimensions (OD). The knife-edge contacts can be used to scribe parallel lines on the workpiece. This caliper can be used with one hand through operating the fine adjustment roll with the thumb. The lock screw locks the dial bezel and holds the sliding jaw in position. The depth rod is integrated into the rack of the caliper, unlike many calipers which offer a detachable depth rod, or none at all.

The hardened stainless steel components, including the bar, measuring surfaces, rack, gears, and depth rod, offer corrosion resistance, increased accuracy, and long life. Positive split gear anti-backlash control offers increased accuracy over standard gear configurations. Backlash is the amount of clearance between mated gear teeth in the caliper controls, which prevents the gear teeth from jamming. It is undesirable to have much backlash due to the lack of precision offered by the increased amount of play between gears. Certain gear designs can minimize or eliminate backlash; split gear systems actually split the gear into two gears, each half as thick as the original gear. One of these gears is then fixed to the shaft while the other gear is allowed to turn. The free-turning gear is connected to coil springs that rotate it until all of the backlash in the control system has been eliminated. The rack teeth point down to keep foreign matter from clogging the gear operations. This prevents measurement errors where metal chips could interfere with proper caliper operation.

Calipers measure the distance between two opposing sides of an object. They make inside, outside, depth, or step measurements, according to their type. Calipers are commonly used in architecture, metalworking, mechanical engineering, and machining. The simplest calipers have two legs to mark the two points and require a ruler to take the measurement. More complex calipers use two sets of jaws instead of legs and have up to two graduated scales. Vernier, dial, and digital calipers give direct and accurate readings and are functionally identical, having a calibrated scale with a fixed jaw, and another jaw with a movable pointer that slides along the scale. The vernier caliper has a scale sliding parallel to the main scale for an additional, fractional reading to improve measurement precision. The dial caliper has a circular dial with a pointer on a toothed gear rack replacing the second vernier scale. As with the vernier, this second measurement is added to the reading from the main scale to obtain the result. The digital caliper takes a differential by zeroing the display at any point along the slide, with an LCD that displays a single value in English and/or metric units.

The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company was founded in 1880 and is headquartered in Athol, MA.


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