The gage blocks are made of fully seasoned alloy tool steel with hardened to 65 RC to provide resistance to wear, abrasion, and rust. The measuring surface of the gage block are ground and micro-lapped to a mirror finished so the gage block can be wringable. The inspection are conducted in an ISO-9001 certified laboratory with a master block set that is traceable to NIST and each block's deviation are recorded on the NIST traceable calibration form. The measuring faces (2 sides) are ground and micro lapped to surface roughness of Ra 0.016 while the non measuring face (4 sides) are maintain at Ra 0.63.The mirror finished surface allow the gage block to be easily wringable. Each gage block is laser marked with nominal length and serial number with reference to the calibration certificate. Inspection are taken place in a ISO-9001 certified laboratory and each block's measurement is recorded on the NIST traceable certificate, not a ISO17025 long form certificate. Each block is wrapped in a greasproof paper and placed inside the plastic insert holder to prevent corrosion and abrasion.
SHARS 4 440V Milling Vise +/-0.0004. 4" wide jaw plate, 4" inner jaw opening, 10 outer jaw opening. Made from 80,000PSI stress relief cast iron.
Vise bed hardened to 45 HRc and jaw plate hardened to 54 HRc. Bed height Tolerance 2.25" +/-0.0005". SHARS 6 670V Milling Vise +/-0.0004. 6" wide jaw plate, 8.95" inner jaw opening, 17 outer jaw opening.Bed height Tolerance 2.875" +/-0.0005". The item "SHARS 81 PCS GRADE B GAGE GAUGE BLOCK SET NIST CERTIFICATE" is in sale since Wednesday, April 11, 2012. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Metalworking Tools\Metalworking Inspection & Measurement\Gauge Blocks". The seller is "discount_machine" and is located in Saint Charles, Illinois.
This item can be shipped worldwide.