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4.6" O.D. x 3.5"I.D. Dicemaster® High Quality Diamond Blades Caution: 4.6" O.D. x 3.5" I.D. blades and related flanges are being sold that have reduced flange hub and blade I.D. diameters with as little as a few thousandths of an inch from the established standard of 3.500". This is virtually undetectable by the end user. This may result in the end user"s existing blade stock having an I.D. too small to fit onto the flange or the blade I.D. too large which creates a damaging hammer effect to substrates during the dicing process due to the loose fit between flange and blade. Thermocarbon believes in standardization to avoid the problems this may create, however, we may have to produce these blades and flanges in the near future in order to continue our commitment to providing the customer with an alternative source for these products. Meanwhile, always question the I.D. dimensions of blades and O.D. dimensions of the mounting hub of flanges prior to purchase. 1Thickness (inches)    (mils) .0030 3 .0040 4 .0050 5 .0060 6 .0070 7 .0080 8 .0090 9 .0100 10 .0110 11 .0120 12 .0130 13 .0140 14 .0150 15 .0160 16 .0170 17 .0180 18 .0190 19 .0200 20 .0210 21 .0220 22 .0230 23 .0240 24 .0250 25 class=techtable2> 1Standard thicknesses are available up to .250" in .0001" increments. Other sizes available upon request. 2Thinner blades below the minimum thickness for a given diamond size are available upon request.   Thickness tolerance Levels (inches) Minimum blade thickness (inches) AA ±.0001 .0120 A ±.0002 .0030 B ±.0003 .0030 C ±.0004 .0030 D ±.0005 .0150 E ±.0010 .0250 Resin-Bond Matrix See Resin-bonded diamond dicing blade matrices  for available formulations Mesh size equivalent Diamond particle size in microns 2Minimum blade thickness (inches) 28000 .5 .0030 14000 1 .0030 8000 3 .0030 3000 6 .0030 1800 9 .0030 1200 15 .0030 1000 22 .0030 500/600 30 .0030 400/500 40 .0040 325/400 46 .0050 270/325 54 .0060 230/270 64 .0070 200/230 76 .0080 170/200 91 .0090 140/170 107 .0100 120/140 126 .0120 100/120 151 .0140 Thermocarbon"s service engineers are available to assist you in the selection of the blade best suited for your application. All blades are electronically conductive unless otherwise specified. U.S.(outside Florida): 1-800-523-1946 International Headquarters: 407-834-7800 Fax: 407-767-8675 West Coast Sales: 650-968-0570 EDIT