These fiddle Tufnol blocks have two uneven diameter sheaves located in-line. They have a becket at one end, a swivelled bow at the other and a cam cleat. They are ideal for main sheets.
Fitted with a swivel eye, they come in two sizes to work with ropes of 10mm and 12mm diameter.
Tufnol is a traditional laminated plastic material made from phenolic resin and woven cotton or linen fabric. It is strong and light, and provides an economical, low maintenance and traditional solution for sailing boat blocks.
Our Tufnol blocks are manufactured in Holland with solid stainless steel frames and brass bush bearings.
|Shell Size||Rope Size*||Sheave
|Davey Product Code|
|4-3/4" (120mm)||10mm||42mm & 20mm||Approx. 740kg||370kg||4365/00/10|
|6-1/4" (160mm)||12mm||48mm & 25mm||Approx. 1210kg||605kg||4365/00/12|
* Note - we recommend choosing products one rope size size larger than indicated to ensure adequate free movement.