OTHER FACTORS TO BE CONSIDERED WHEN SELECTING THE PROP PROTECTOR ARE:
The diameter of the cutter blade must be larger than the diameter of the propeller hub and of the bearing housing in the strut of stern tube. If the blade is shielded by either of these, it cannot cut entangled line. The overlap of the blade should be at least 1/4" (6mm).
The minimum gap specified for each type and size of cutter should be of UNTAPERED shaft. If all or part of the gap consists of tapered shaft, a cutter for a slightly smaller shaft diameter should be selected so that it can then be machined to match the taper of the shaft.
PROP PROTECTORS may be installed with the vessel afloat. Owners wishing to carry out underwater installation should not use the standard fastenings normally supplied but should order the special, self-locking fastenings available for this purpose.
ALL PROP PROTECTORS ARE SUPPLIED WITH A4 STAINLESS STEEL FASTENINGS, ALLEN KEYS, THREAD LOCKING FLUID AND INSTALLATION INSTRUCTIONS. BOTH TYPES ARE EASY TO INSTALL; THE CLAMP-ON CUTTERS, FOR EXAMPLE, CAN BE INSTALLED IN ABOUT 10 MINUTES.