2 - Forcing Screws (Live Center): 3/4"-16 x 6-11/16" and 3/4"-16 x 5". 2 - Cross-bar Yokes: 3 pin-hole at 3-1/4" to 5-1/2", 2 pin-hole at 2-3/8" to 3-3/8" 2 - Clamp Bolts. 3 - Pairs of Puller Jaws: 1-3/8" Max, 1-5/8" Max, 1-3/4" Max. 1 - Pair of Jaw Pins with Ball Spring. 3 - Pairs of Capped Bolts. Spread: 3" to 5", Reach: 1" to 2-1/4". Housed in a blow-molded plastic storage case This multipurpose bearing and pulley puller set is for a wide range of pulling jobs, including: bearings, alternators, generators, power steering and crankshaft pulleys, timing gears, and harmonic balancers. This set includes drop-forged components, which can be used in a variety of combinations.