- Make sure this fits by entering your model number..
- Ergonomic - The Starrett top quality tools have IP67 protection against coolants, water, chips, dust, and dirt often found in machine shop environments..
- Make Measurements Easy - The large, clear, easy-to-read LCD digital readout on this caliper makes it simple to get accurate readings quickly and easily; No squinting or straining is necessary!.
- Turns Off Automatically - The caliper will turn off after 30 minutes of no slide movement; A one second push of either the “in/mm or “zero on/off” button or any movement of the slide will reactivate the display with no loss of position..
- Quality Made - The Starrett Electronic Caliper measuring surfaces are made from hardened stainless steel, offering exceptional durability and greater corrosion resistance..
- Adjustable - Its induction type linear encoder system and inch/millimeter metric conversion makes Starrett precision measuring tools the right choice for any job..
The Starrett 798A-12/300 dial caliper measures 0 to 12 inches and
0 to 300 mm with 0.0005” or 0.01 mm accuracy. This easy-to-use
measuring tool allows for reliable and accurate readings with the
slim, streamlined design and large LCD. This caliper is IP
67-certified, which means that the electronic components are
resistant to debris, and are resistant to submersion under
standard conditions for up to 30 minutes.
The caliper can be used with one hand through operating the fine
adjustment roll with the thumb. A lock screw can hold the slide
in position. The hardened stainless steel measuring surfaces
offer corrosion resistance and long life, while the heavy-duty
bar and slide are a sturdy 3.5 mm thick. Single battery is easy
to access, on the front of the plastic casing, next to the LCD.
The last measurement position is retained when the caliper is
shut off, and it is simple to zero the caliper at any position
with the clearly marked zero button. It is simple to zero the
caliper at any position with a push of the zero button.
Easy-to-read LCD is large, with 0.310” tall characters. The
caliper shuts off automatically after 30 minutes of nonuse.
Linear accuracy meets the internationally used Deutsches Institut
fur Normung 862: Vernier Calipers Requirements and Testing (DIN
862) standards. Induction-type linear encoder system offers high
precision in measurements by tracking small movements in position
by using a conductor moving through a magnetic field. The outside
measuring jaws on this caliper are approximately 2-1/2” (63.5 mm)
long, while the inside measuring jaws are approximately 3/4” (19
mm) long.
Calipers measure the distance between two sing 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, machining,
manufacturing, carpentry, and medicine. 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 dial caliper is used also for measuring size differential
between two objects. The digital caliper takes the same sort of
differential measurements as the dial caliper by zeroing the
display at any point along the slide, with an LCD (replacing the
dial) that displays a single, easily read value in both English
and metric units. Some digital calipers can hold data readings
between measurements and send them to data collection devices.
The L. S. Starrett Company was founded in 1880, originally
manufacturing bench vises, squares, and other tools. They
acquired other companies throughout the years, expanding their
services into making precision measurement instruments and tools,
such as calipers, micrometers, saw blades, and gauges. Starrett
is headquartered in Athol, Massachusetts and has manufacturing
facilities in Brazil, the United Kingdom, China, and other
locations.
What’s in the Box:* CR 2032 3V battery
* Fitted plastic case