Patent ID: 7703649

Claim:
A system of collations for supplying fasteners of at least two different lengths to a fastener driving tool, comprising: a plurality of first collations each having a plurality of sleeves each having a front and sides, said sleeves holding first fasteners having a tip located at a predetermined position relative to said front and having a first neck length; and a plurality of second collations each having a plurality of second sleeves each having a front and sides, said second sleeves holding second fasteners having a tip located at said predetermined position relative to said front of said second sleeves and having a second neck length, wherein said second fasteners are of different length than said first fasteners; said plurality of first collations having rail engaging means on each side of said plurality of sleeves and said plurality of second collations having rail engaging means on each side of said plurality of second sleeves; wherein said predetermined position of said tips is selected in order to reduce dive-back and improve guidance of said first fasteners and said second fasteners.