Ultra-Tool® Series 650 Ground & Polished Ultra-Grain® Carbide Cylindrical Blank - Ultra-Tool’S Series 650 Polished Ground Carbide Cylinders Feature The Same World Class Tungsten Carbide Substrate We Use In All Our Finished Cutting Tools. Ultra-Grain® Has An Excellent Combination Of High Hardness & Transverse Rupture Strength. Additionally, Although Cemented Carbides Typically Feature Poor Corrosion Resistance, Series 650 Offers Industry Leading Specifications For This Characteristic As Well. These Cylinders, Like All Ultra-Tool Carbide Products, Are Shrink-Fit Ready (Sfr). All Ultra-Tool® Products Are Proudly Made In The U.S.A., 100% American Designed, American Made, American Owned.

• Ultra-Grain® 1 Carbide, Cobalt Percentage: 10%
• Grain Size (um): < / = 0.7
• Hardness: 92.7 HRa, 1680 HV
• Fracture Toughness: (K1c): 7.9
• Transverse Rupture Strength (GPa): 4.1
• Density (gm/cc): 14.30
• Diameter tolerance: + 0.0000" / 0.0003" on lengths under 6"
• Diameter tolerance: +/- .0005" on lengths of 6" and longer
• Overall Length Tolerance: +/- 0.060"
• Lengths of 12" (305 mm) are uncut and will have greater OAL plus + tolerance
• Series 650 may have chamfer on one end dependent upon size.