Short DescriptionIndustrial Magnetics MAG-MATE® Ceramic Rectangular Bar Magnet 4"wd x 4"lg x 3/16"Th, 6.5 Lb Hold, Grade 8 187X4X4C5. Ceramic magnets are a non-metallic, non-conductive, hard, brittle material compound of iron oxide,Strontium Ferrite and small quantities of other metal oxides that can only be cut with a diamond wheel*Industrial Magnetics orders must meet a minimum of $75***Please contact [email protected] for all lead times before placing your order. Once paid for, any cancellations will have a 4% cancellation fee.**Full DescriptionIndustrial Magnetics MAG-MATE® Ceramic Rectangular Bar Magnet 4"wd x 4"lg x 3/16" Thick, 6.5 Lb Hold, Grade 8 187X4X4C5 Ceramic Rectangular Material Hold - lbs (kg) Th. (in) Wd. (in) Ln. (in) Wt. (lbs) Grade Model No. 0.187 4 4 0.75 8 187X4X4C5 6.5 (2.95) Ceramic magnets are a non-metallic, non-conductive, hard, brittle material compound of iron oxide,Strontium Ferrite and small quantities of other metal oxides that can only be cut with a diamond wheel.Ceramic Features‚¬¢ Low cost, high energy material‚¬¢ Performs best at temperatures below 480°F (249°C)‚¬¢ Difficult to grind or drill, cannot be machined utilizing EDM‚¬¢ Tolerance ±2% on O.D., Length & Width. ±.005‚¬‚¬ on ThicknessPermanent Ceramic 8 Magnet MaterialLow-cost high energy materialMagnetized through the thickness, North on one side, South on the otherMaximum temperature 480°F (249°C)Mfg Category: Tooling Metalworking