Bill Forrest introduced Copperheads as a chock. They never gained prominence in that role, but aid climbers found that they made great sketch placements in shallow seams. The ones with aluminum heads are often called Alumiheads. Copperheaads and Alumiheads work best in vertical seams. Circle Heads have an even pull on both sides of the crimp, so they work better in horizontal seams.

↑ Set 116-120: Fish Heads

• Made in Joshua Tree, California [ca. 1995].
• #1 – #5

↑ 116: Fish Copperhead

• Made in Joshua Tree, California [ca. 1995].
• #1, 11x4.4 mm.

↑ 117: Fish Copperhead

• Made in Joshua Tree, California [ca. 1995].
• #2, 11x6.3 mm.

↑ 118: Fish Copperhead

• Made in Joshua Tree, California [ca. 1995].
• #3, 15x6.3 mm.

↑ 119: Fish Copperhead

• Made in Joshua Tree, California [ca. 1995].
• #4, 19x8 mm.

↑ 120: Fish Alumihead

• Made in Joshua Tree, California [ca. 1995].
• #5, 19x8.5 mm.

↑ Set 121-123: Fish Circle Heads

• Made in Joshua Tree, California [ca. 1995].
• #1 – #3

↑ 121: Fish Circle Head

• Made in Joshua Tree, California [ca. 1995].
• #1, 11x4.4 mm.

↑ 122: Fish Circle Head

• Made in Joshua Tree, California [ca. 1995].
• #2, 11x6.3 mm.

↑ 123: Fish Circle Head

• Made in Joshua Tree, California [ca. 1995].
• #3, 19x8 mm.