TruBuilt 1 Automotive Universal Harmonic Balancer, Pulley, Damper and Gear Puller Tool Set, 13 Pieces, with Carrying Case T1A-D1007 13 PC Professional Grade Universal Harmonic Balancer Puller Set In Convenient Carrying Case For Pulling Balancers, Vibration Dampers, Pulleys, and Gears with Threaded Holes The floating swivel prevents damage to the shaft ends and the 4 slot yoke is heat-treated alloy steel for strength and durability (suitable for 2 and 3 hole applications) Hardened and tempered, precision-machined bolts Set Includes: Pressure screw, 4 slotted yoke & the following pulling screws: 2pcs- 3/8""X4"", 2pcs- M8-1.25X80MM, 3pcs- 3/8""X2"", 3pcs- 5/16""X2"" all in a convenient molded plastic carrying case