Our RAC tungsten carbide cutters are manufactured with premium design with only the highest quality materials to provide faster and smoother cutting. The tungsten carbide cutters are used for shaping, smoothing or removing materials from pre-sintered zirconia restorations. Each type of RAC cutter is produced according to ISO classification. Through our experience in the dental lab industry, we have found that with these 5 types of tungsten carbide lab cutters, you are able to produce and complete all your laboratory processing needs consistently with superior high quality. The recommended working speed is 10,000 to 50,000 RPM.