The Cross-Over Sub, 4-1/2" IF Pin is an adaptable solution designed to meet your drilling needs with precision and reliability. Adapt from your 4-1/2" IF box with a pin made to the connection of your choice, up to 5-1/2" FH. Customize further with options for Box or Pin and optional Wrench-Flats, all housed in an overall length of 16". Crafted from 4145 HT Steel and featuring a 2.25" ID Bore, this sub ensures durability and optimal performance in demanding environments.