Rotary Corp brand aftermarket product. Contains: 1 – 31ยบ & 46-5/16″ Diameter adjustable to 1-9/16″ 1 – 1/4.248 Pilot 1 – 9/32.279 Pilot 1 – 8mm Pilot for worn 5/16″ Guide Wrenches Pilot Puller Pin Fitted Tool Case Includes all parts listed above plus 11/32″ Pilot and longer blades. Kit will also cut all known Fits Wisconsin Engine Seats except Models VQ4 and VR4. The cutter head is adjustable to 1-11/16 diameter. Cutter Seat Valve Set Fits Neway.