Two-sheave or three-sheave Tufnol block with swivel and integrated cam cleat.
The TUFNOL block has become a classic over the years. Made from seawater-resistant laminated corse fibers with stainless steel fittings. These blocks are maintenance-free and known to be exceptionally long-lived. The TUFNOL sheaves have brass bearings, through which wear and friction are kept very low. These blocks fit exceptionally well aboard classic yachts from the 1950s and 60s and are also ideal as universal blocks.
The high breaking strengths have been tested by Germanisher Lloyd (GR). The maximum working load specified by the manufacturer is 50% of the breaking load (BRL).
Warning: Because the bottom sheave has a very small diameter, fiddle blocks are only intended for very supple, braided line. The given rope diameters (D1) are maximum diameters. The blocks spin more easily with thinner rope.
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