Before you can answer that we need to know. What diameter saw blade and what thickness of material you are cutting
The number of teeth are just a starting point, you also want quality teeth with the correct rake, (how much each tooth leans) , gullet and tooth shape to give the best performance and quality of cut for the material.Also where is a good place to buy the blades from , as B&Q and Screwfix do not appear to stock many blades?
Agreed, but when it comes to portable, hand held saws the options are much more limited. AFAIK Festool are one of the few firms who make a proper rip blade for their plunge saws (the Panther). Another factor with portable tools, especially cordless ones, which affects static machinery much less, is power. A beautifully made 24 tooth blade from an industrial manufacturer isn't going to be much use if it arrives with a 2.8mm kerf when it is intended for use on a cordless saw, where 1.4 to 1.7mm is needed to keep battery consumption at manageable levels. I find that the guys making the industrial blades generally aren't that interested in narrow kerf and often unsharpenable (I.e sub 1.8m kerf, I'm told) cordless portable blades, although one Sheffield firm I have bought from, Atkinson-Walker does manufacture blades for this market as well as the industrial stuffThe number of teeth are just a starting point, you also want quality teeth with the correct rake, (how much each tooth leans) , gullet and tooth shape to give the best performance and quality of cut for the material.
2.8mm is actually the sort of kerf you'd use in a table saw. Festool TS55 corded saws have blades (these days) with a consistent 2.2mm kerf. Makita haven't learned this one, yet, so their blades are all over the place in kerf widths, just like Festool used to be. Cordless tools always require an even thinner kerf because otherwise you'd find that you have no power and the battery life would be abysmal. So really there is little or no option available to youSo would you say a narrow kerf blade is the better option for only cordless plunge saws but the 2.8mm kerf is ok with corded?
Yes, on MDF, chipboard, OSB and some plywood, but the motor in a plunge saw is running at around 6000 rpm. What speed does your table saw run at? With a plunge saw such as the Festool TS55 you would need to look at a 12 tooth Panther rip blade for ripping solid timber, a 28 tooth ATB blade for breaking down plywood, MDF, etc, a 48 tooth ATB blade for veneered or melamine/laminate faced man made boards, a 56 tooth special TCG blade for laminates, but a 4 to 8 tooth PCD diamond blade for cement board and other dense materials such as Corian. Most blade manufacturers follow suit. With portable tools you always need to select the lowest tooth count and most suitable tooth form for the job in part to ensure that you clear waste and avoid scorching (a real problem if your extraction is or inadequate), hence the limited range.A 165mm blade with 28 teeth is going to be 0.7 TPI , is this enough for a clean cut, 48 teeth gives 1.2 TPI .
I think I'd try to stick with the same kerf as the saws comes with, which is 2.2mm, isn't it? A very good reason to standardise the the kerfs of all your blades (and for that matter to get all of them reground together and ask for them to be resharpened to identical kerfs - something they can achieve on a CNC grinder) is so that you minimise wear on the anti splinter strip. After all that is one of thecreasons for having a rail saw...when buying a Makita corded it will be best to get a smaller Kerf blade?
There is another little trick that you may be missing, one that applies to both Makita and more recent Festool saws (and probably the other trade rated saws), and that is the ability to set the saw to make a 1mm deep reverse direction scoring cut, followed by a full depth forward cut. That way you can bypass the spelching which can occur in the surfaces of crosscut in good and othe veneered boards. Your Makita has a little pull button to the right of the handle to control thisI can see that at 6000Rpm you will be getting cleaner cuts with fewer teeth as your surface speed is higher than my table saw at 2800 Rpm even with a 315mm blade
Enter your email address to join:
Register today and take advantage of membership benefits.
Enter your email address to join: