which jig saw blades?

[rogerroger]

Assuming you can't buy jig saw blades specifically for cutting GRP, which is best - wood ? metal ???? other??

Roger Holden
www.first-magnitude.co.uk

 

[billskip]

I tried many types of blade cause fine wood metal slow fast etc etc took teeth off all of them in seconds...ended up using cutting disk on small angle grinder ..did a great job and very quick...but working area was not confined...bit difficult in restricted space would think....

Bill
www.aegeansailing.co.uk

 

[vyv_cox]

There used to be blades for the purpose, I still have an old one. No idea if they are still made. It has diamond or tungsten carbide particles bonded to the blade edge. Don't remember it being terribly expensive. I cut new windows in a GK29 and one blade did the lot, plus many other jobs since.

 

[30boat]

Blades with tungsten carbide are freely available.They last a long time but are a bit expensive.Very effective.

 

[Boathook]

Having earlier fitted a bow thruster use metal blades. Wood ones just burn their way round. Another good tool is the dremel or B&D multitool. Use the reinforced cut off disc, it works wonders!

 

[ccscott49]

Tungsten crbide coated rough blades, tear it up!

 

[andy_wilson]

Tungsten Carbide

Often sold as 'ceramic tile cutting blades'.

Will cut almost anything, the harder the better (soft stuff clogs), and GRP cuts like butter.

 

[brian_neale]

Re: Tungsten Carbide

I have also used a router with a tungsten carbide cutter to cut GRP - works well, doesn't seem to hurt the cutter.

 

[chippie]

I have seen a blade that is essentially a rod totally coated with abrasive that I was told was specifically for use on GRP.
Why not ask some boat repairers near you if they use them , and from where they were bought.