Our Billet All American Pre Presses are crafted to increase the amount of material that can be pressed in each squish, while preventing blowouts. Pre exposing the material to force is also known to increase yields slightly by even loading the bag and leaving no empty spots.
For 3x5 plates:
Inner Diameter: 3.5"L x 1.5"W x 2"H
For 4x7 plates:
Inner Diameter: 5.5"L x 2.5"W x 2"H
Weight 4 lbs
For those with shorter presses that have a diameter smaller than required, we recommend any standard 1-ton Arbor Press when using a prepress.