About the 633
The 633 is a 1X length nymph hook perfect for bead head patterns. It is my first choice for anything with a bead.
This is a 1X length hook with a 2X gape. It has a down eye and is formed from a heavy weight wire. It is available in sizes #10 to #22.
As with all Firehole Sticks, this hook is made from high strength carbon steel, which is properly hardened and tempered. The hook is chemically sharpened and finished with a black nickel coating.