Absolutely the quickest and easiest way to install pistons. Simply slide the compressor clamp over the rings, give it a squeeze and tap the piston into the block! Set includes ratcheting pliers and six compression bands that range in size from 2-7/8'' up to 4-3/8''. That should be plenty big enough for us mortals who are not building behemoth mountain motors that have a bore size larger than 4-3/8''. Pliers and bands come in a sturdy plastic storage case to properly store and protect your investment.
Band Sizes Are:
2-7/8'' thru 3-1/8'' (73mm thru 79mm)
3-1/8'' thru 3-3/8'' (79mm thru 86mm)
3-3/8'' thru 3-5/8'' (86mm thru 92mm)
3-5/8'' thru 3-7/8'' (92mm thru 98mm)
3-7/8'' thru 4-1/8'' (98mm thru 105mm)
4-1/8'' thru 4-3/8'' (105mm thru 111mm)