Carbide Tipped Valve Seat Cutter 25 Pecs Set For Vintage & Modern Car & Bikes. Carbide Tipped Valve Seat Cutters. That are acclaimed widely for optimum performance for longer periods than high speed steel tools. These are made from the finest-grade of carbide that is procured from the leading vendors of the industry and are robustly designed. We use cutting-edge technologies to manufacture these tools that are available in a wide array as per the requirement of customers at leading industry prices. Pilot Size’s are as Follows: 7mm, 8mm, 8.5mm, 9mm, 5/16″, 11/32″, 3/8″, 7/16″. Every feedback is valuable to us.