Skip to content
Shaft Knife Plus - Split Design Propeller Rope Cutter
Shaft Knife Plus - Split Design Propeller Rope Cutter
Shaft Knife Plus - Split Design Propeller Rope Cutter
Shaft Knife Plus - Split Design Propeller Rope Cutter

Shaft Knife Plus - Split Design Propeller Rope Cutter

£260.00 - £654.00
£260.00
£260.00 - £654.00
£260.00

Shaft Knife Plus - Propeller Shaft Rope Cutter

The improved design two part split rope cutter can be fitted without needing to remove the propeller

The rope cutter is a significant safety benefit and helps to protect the shaft line against damage. The unique design offers a superior cutting action and eliminates the vibrations and shocks that are often associated with the scissor or chopper style cutters. It also significantly reduces the cavitation potential linked to other disc type cutters. 


There are no moving parts to service or maintain. All cutters are built from a stainless steel F51 Duplex Stainless Steel blank and are CNC machined to ensure repeatable accuracy and importantly to maintain the distinctive cutter configuration. The standard series recreational cutter is available to suit propeller shaft diameters up to 60mm (2 ½”).

Installation of this rope cutter is really easy and quick by tightening round-headed screws on the shaft.  When ropes, lines or cables wrapped around the propeller, it cuts them and thus avoids damage to the propeller, propeller shaft, gearbox and associated stern gear.

The Rope Cutter is quick and easy to install and requires no modification to existing propeller shaft or the need to remove the propeller.

1 – Clean the propeller shaft 

2 – Remove the 2 CHC screws and the grub screws from the rope cutter.

3 – Apply thread lock on CHC Screws  (Loctite 241 or equivalent).

4 – Install the rope cutter as close as possible to the propeller by assembling the two halves on the shaft

with the 2 CHC screws without fully tightening.

5 – Ensure that there is sufficient space between the rope cutter and the bracket/sterntube bearing so that the latter remains correctly lubricated (do not obstruct the passage of water with the rope cutter).

6 – Visually check that the 2 halves of the rope cutter are parallel.

Available in Metric and Imperial shaft sizes. Starting at 25mm and 1" .

Stainless steel propeller rope cutter. Shaft Knife