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SHARS 81pc Economy Grade Steel Gage Block Set .0500 – 4″ With NIST CERTIFICATE NEW Product Code 303-5311C Product description 9 blocks: .1001-.1009″ in .0001″ steps49 Blocks: .101-.149″ in .001″ Steps19 Blocks: .050-.950″ in .050 steps4 Blocks: 1-4″ in 1″ steps81 PiecesAccuracy: Economy=Grade B : +/- 0.000050″ Product featuresOur gage blocks are manufactured under carefully controlled conditions and inspected by the ASME B89.1.9-2002 standard, allowing for an accuracy of +/- 50 million when used at room temperatures of 68 degrees Fahrenheit (or 20 degrees Celsius). 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. Also see the great deal on Gage Block with Certificates at My Ebay Store All Available to Ship NOW! at Fixed Prices 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″ Clamping repeatability +/-0.0004″ Lifetime limited warranty To learn more, click here to 202-0991 SHARS 6″ 670V Milling Vise +/-0.0004 6″ wide jaw plate, 8.95″ inner jaw opening, 17″ 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 2.875″ +/-0.0005″ Clamping repeatability +/-0.0004″ Lifetime limited warranty To learn more, click here to 202-0993 SHIPPING: UPS GroundBuyer pays ACTUAL UPS shipping & insurance, and a $3.00 handling fee for this item to be shipped to all states within the continental United States. Hawaii, Alaska & and other United States Territories will ship via UPS BLUE. Canada will pay actual shipping costs plus duty fees via UPS. We can combine other auctions or store items to save on shipping. You may ask for freight cost before buying tools. Shipment will be made the same day as your payment is received and an UPS tracking number will be email to you. If your order is being shipped to an address outside of the United States, local consumer tax and/or customs duty , brokerage charges may apply and the package’s recipient may need to pay these to clear customs. PAYMENT: We accept : VISA, MasterCard and E-Check on PayPal.com Illinois resident adds 8% sales tax. RETURNS: If the item stated as brand new is found defective on arrival or incorrect item was shipped, buyer understands that the product will be repaired or replaced at seller’s discretion, and be given a reasonable amount of time. Buyer is responsible for return shipping costs and insurance. Warranties are offered by the manufacturer and will be honored by the manufacturer. All shipping and handling fees will not be returned in any case.