Manufacturer: HFS
Brand: HFS
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Product features Set made of fully seasoned alloy tool steel with hardened to 65 RC to provide both long wear and resistance to stains and rust Blocks manufactured under carefully controlled conditions, allowing for the highest degree of accuracy when used at room temperatures of 68 degrees F (20 degrees C) All gage block sets are certified by an accredited ISO-17025 Gage lab with long form certification Individual serial numbers on each block, regardless of grade A complete certificate of calibration traceable to the N.I.S.T. showing the deviation of each block. All sets meet or exceed Fed. Spec. ASME B89.1.9-2002 Grade : Economy Sets calibrated to meet or exceed federal specification GGG-G-15C, Grade : B Surface finish 4.1 millions. All calibration conforms to:MIL-STD 45662A, GGG-G-15C, ISO/IEC 17025 Accredited, ISO 9000, 10012-1, ANSI-NCSL Z540-1, ISO GUIDE 25 Certified Mirror polished surfaces provide superior wringing characteristics Guaranteed Accuracy of Flatness, and Parallelism Excellent Finish and Wringing Characteristics The interior separator is made out of plastic, therefore it will guarantee the gage blocks won't get wet or rusty All sets are supplied in deluxe fitted wood case The inspection certificate specifies the deviation of each individual block from its nominal length. Gage blocks are commonly used to calibrate fixtures and precision instruments in workshop, inspection, and dimensional metrology applications, to inspect tools such as mounting tools, cutters, fixtures, and mechanical parts, and in the gage manufacturing process itself. Grade B gage blocks are commonly used in workshops for calibrating and inspecting mounting tools and cutters
![Starrett 280 Piano Tuners\' Gage, Hardened, Satin Finish, Numbers 12-28, 0.029 - 0.071\](https://images-na.ssl-images-amazon.com/images/I/519S8dalajL._SL110_.jpg "Starrett 280 Piano Tuners\' Gage, Hardened, Satin Finish, Numbers 12-28, 0.029 - 0.071\")
