Starrett Master Hardened Steel Precision 3" Square No. 20-3

Description

You are bidding on a very nice Starrett Master Precision 3" Master Square,  No. 20-3.
The Starrett 20 Master Precision Square is the finest precision-checking square. Squareness accuracy to .0001" (0.0025mm) every 6" (150mm). This hardened steel square is used when extreme accuracy is required. The beams and blades are hardened, ground and lapped to ensure parallelism and straightness. The beam is grooved at the inner corner for clearance of burr or dirt. Made of high quality tool steel, with the finest of craftsmanship throughout. 3" (75mm) Blade, 2 3/8" (60mm) Beam.
FEATURES
The finest precision-checking squares - not graduated. Squareness accuracy to .0001" (0.0025mm) every 6" (150mm)
These hardened steel squares are used when extreme accuracy is required.
The beams and blades are hardened, ground and lapped to ensure parallelism and straightness.
The beam is grooved at the inner corner for clearance of burr or dirt.
Made of high quality tool steel, with the finest of craftsmanship throughout
.
Headquartered in Athol, MA, in the heart of New England, where manufacturing began and evolved into what it is today, Starrett has a history and reputation so rich and solid that the words "quality" and "Starrett" are virtually synonymous.
I will fully guarantee this item - new cost 5.
We have lots of quality inspection tools available - see my other auctions.
Shipping in the Continental US is free- I have very competitive rates for our always welcomed International bidders.
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