Tagged: chock


Peck Cracker Chocks

Our Peck Crackers are from approximately 1969/1970. The sizes were as follows: Wired Sizes: A4 6mm diameter chock, wire diameter 2.5 mm., Breaking strength 1,150 lb. Stainless Steel A5 8mm diameter chock, wire diameter 3 mm.,...


Dolt Lopchock #88

A Dolt Lopchock #88 magnesium chock from the shop of the late great Bill “Dolt” Feuerer. Only one size magnesium Lopchock was made and it was marked with “88” to set it a apart...


Chouinard Drilled Hexcentrics

Chouinard factory drilled hexes from 1978. Sizes #7 through #11 were drilled out to save weight when the hexes were still “thick walled”. The next design changed to a “thinner walled” stock and made...


Forrest Mountaineering Plastic Foxhead

Offered by Forrest Mountaineering in 1974, this single cable plastic Foxhead chock only available in the #3 size. The photos show that the casting for the plastic version was unique and not a direct copy...



In U.K. in the early 1960s John Brailsford designed the first MOAC style nuts. Ellis Brigham Sporting Goods began producing and selling the nuts naming them MOAC for “Mountain Activities”. Originally the nut was...


Clog Cog Chocks

New in 1976, Clog departed from the straight sided designs favored by other manufacturers and introduced the Cog chocks sizes #1 through #10. The unique rounded protrusions allowed for jamming and surprisingly stabile camming...


Eiger Equipment

A collection of miscellaneous Eiger equipment from the Vertical Archaeology archives. The pitons are standard European soft iron types with the “Eiger” logo stamped on one side of the anvil.


Simond Bicoin Nuts

Available in both slung and wired versions, these chocks were straight sided and clean. They were a very basic and versatile design. These nuts were manufactured beginning in late 1970’s and remained in production...


Simond Asymetric Chocks

Simond Asymetric chocks were available in slung and cabled versions. The first mention I can find of this interesting design is in catalogs from winter 1979. They are favorably reviewed in “High Technology” by Steven...