Large	Small

Overview

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Large
(#3775)

Front	Rear

Technical Details

I acquired this Montana Cinch Tether Coupler from Doug Anderson in 2022.

The large version is 101 mm. long, 74 mm. wide, 10 mm. thick, and weighs 70 g. It is milled from aluminum alloy and soft anodized. The circular hole is 35 mm. in diameter, The slot is 53 mm. long and 18 mm wide.

The front is stamped with "MONTANA CINCH" and the rear with ""7" and "PAT. D458533."

Comments

The Montana Cinch was listed on eBay as a Figure Eight descender, but that was not it's design intent. Its purpose, according to U.S. Patent D458533, is to be a "tether coupler for placement on a rope without passing a rope end therethrough." This provides a convenient means to create an attachment point on a rope without tying a knot.

There were no instructions provided with the Cinch, so use your own judgment when matching your rope to a Montana CInch. Small, limp, or slippery ropes may slip. Larger and stiffer ropes within the Cinch's capabilities hold better, but make attaching the Cinch more difficult.

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Small
(#3776)

Front	Rear

Technical Details

I acquired this Montana Cinch Tether Coupler from Doug Anderson in 2022.

The small version is 72 mm. long, 53 mm. wide, 10 mm. thick, and weighs 37 g. It is milled from aluminum alloy and soft anodized. The circular hole is 26 mm. in diameter, The slot is 39 mm. long and 15 mm wide.

The front is stamped with "MONTANA CINCH" and the rear with ""7" and "PAT. D458533."

Comments

The smaller version is clearly designed for smaller ropes, but since there are no rope size markings and I have not found any elsewhere, you would need to use your own judgment when deciding which size to use on your ropes.

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