Details about L.S Starrett 0-6" Inside Outside Vernier Dial Caliper No.120A Hardened StainlessSee original listing
Aug 11, 2012
Hebron, Kentucky, United States
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition
Up for sale is a L.S Starrett 0-6" Inside Outside Vernier Dial Caliper No.120A Hardened Stainless Steel.
The Starrett 120 dial caliper measures 0 to 6 inches with 0.001” accuracy. This handy measuring tool allows for reliable and accurate readings with the sharp, black graduations on the no-glare, satin-finished bar, crisp lines on the white dial face, and knife edge contacts for inside and outside measurements.
One full revolution of the dial is equivalent to 0.100”. The jaw depths on this caliper are approximately 1-1/2” for the outside measuring jaws and 5/8" on the inside measuring jaws. 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 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, 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 they have manufacturing facilities in Brazil, the United Kingdom, China, and other locations.
This tool(s) comes from a collection of a gentleman who passed away last year at the age of 98. He was a retired machinist / tool & die maker at Wald Manufacturing in Maysville, Ky. Wald Manufacturing was well know for making quality metal bicycle parts. During World War 2 at Wald, the company plant was sort of "taken over" by the U.S. Government to serve as a factory for making bomb sites, grenade launchers, grenades, and grenade jackets. The gentleman who owned these tools was a machinist there and used these tools to assist in making weapons for the war effort. He was born in 1911 and would have been ~30 years old when he became involved in the war effort. I will provide his name to final purchaser if requested.
"Maysville – xxxxx xxxxxx, age 98 of Maysville died February 2, 2010 at Meadowview Regional Medical Center. He was a retired tool and dye maker and was employed at Wald Manufacturing. He then moved to Lexington and upon his retirement he returned to Maysville."
Wald Manufacturing was awarded the Army-Navy E Award during WW2 for their manufacturing efforts. The Army-Navy "E" Award was an honor presented to a company during World War II for excellence in production of war equipment. The award was also known as the Army-Navy Production Award. The award would consist of a pennant for the plant and emblems for all employees in the plant at the time the award was made. The pennant was triangular swallowtail with a white border, with a capital E within a yellow wreath of oak and laurel leaves on a vertical divided blue and red background. ARMY is on the red background and NAVY on the blue background. Usually an Army officer and a Navy officer would be present at a ceremony when a company would assemble all the employees and a ceremony would ensue. After the award of the pennant to the plant (to be flown), the employees present would receive their pins. A total of 4,283 companies received the award in the course of the war. This amounted to about 4% of the companies engaged in war work. Plants with continuing excellent work were awarded stars to add to their pennant. A handful of plants earned up to six stars by the end of the war. The Army-Navy "E" Award program was terminated after the war ended.
I DO NOT warranty any of these items for accuracy. Please calibrate instruments properly before using. I am not a machinist, I am simply a treasure hunter. I did have these tools looked at by an experienced machinist and he agreed that they were all in great shape. Most, if not all, of the tools are marked with the previous owners name or initials. Make sure this is acceptable to you before bidding!!
Take a look at my other auctions and combine shipping to save cash!! I have an entire collection of Starrett and Brown & Sharpe tools that came from this same gentleman. Click here to see more Vintage Starrett Machinist Tools
AUCTION DETAILS AND INFO
PAYMENT IS EXPECTED WITHIN 3 DAYS! If payment is not received in 3 days, you are subject to losing your item to a backup bidder!
All items are for sale locally also, so bid early and often or these items may be removed from eBay with no notice. If the bid gets to an acceptable level on eBay, I will refer all local buyers to eBay for bidding. If local buyer gives a reasonable offer before eBay offer, they will be sold to the in person buyer.
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Money back minus shipping when item is postmarked back to me within 14 days and I receive it back in the same condition I sent it. Buyer pays return shipping.