NSBrad Posted November 30, 2013 Report Share Posted November 30, 2013 Hi guys, Might be a little bit of a newbie question, but here goes. I picked up a Ridgid R4510 table saw today since orange had them on sale. I also picked up a Freud thin kerf saw blade (P410T, the general blade in the Premier Fusion line) since Rockler had them $25 off (gift card). As I was reading the saw's manual tonight I caught in it that the blade's kerf is supposed to be in the range stamped on the riving knife. The minimum is .094 and the blade I bought is .091. Is using it bad and a safety issue? I don't want to do something stupid with my new tools. I could bring it back tomorrow and get the full kerf version if it is. It's equal to the max range on the blade (.126). Or would you guys recommend a different blade? I was looking at the general purpose blades since I'm starting out. Right now I'm mainly doing some closet/pantry shelving build outs with hardwood plywood but I do has some things that I'd like to do with hardwood. Thanks Quote Link to comment Share on other sites More sharing options...
knotscott Posted November 30, 2013 Report Share Posted November 30, 2013 Once you add the total runout of the blade and saw in action, you may find that the actual kerf on the workpiece is wide enough to pass safely, but if not, it's definitely a problem. I fear that going with the full kerf will add a fair amount of strain to your saw....it'll spin a full kerf, but it's 33% wider and will eventually take it's toll on your motor. It'd sure be easier if they'd make the darn riving knife 0.088" instead! Some options - The P410 is a really nice general purpose blade, but so the Infinity Super General (not sold by Rockler) ...it's as comparable to the Fusion as any other blade on the market, but it has a kerf of 0.097". Their Combomax Lite (010-150) is also excellent and has a kerf of 0.097". IIRC, the Forrest WWII 30T or 40T TK are around 0.098" or 0.100", which gives plenty of clearance. Rockler also carries the new Irwin Marples line made in Italy (not to be confuses with their Marathon construction blades) ....it may not be quite to level of the Fusion, WWII, Super General, but it should be good enough that you may still be very happy with the results. At $45, there might be budget left to add a 24T ripper. Quote Link to comment Share on other sites More sharing options...
NSBrad Posted November 30, 2013 Author Report Share Posted November 30, 2013 Thanks! That's what I figured I was going to hear. Looks like I'll be returning it today. It'd be great if they made the riving knife 0.088". It looks like all of Freud's Fusion blades fall out side of it's spec. Never expected that. I'll take a look at the other blades you mentioned. And probably run by a couple different stores to see what they carry. Rockler was mainly used since it was on sale and there's one about a mile from my house. But there are other places not too far away and I know my blue has the Marples. Quote Link to comment Share on other sites More sharing options...
Tumbles1982 Posted November 30, 2013 Report Share Posted November 30, 2013 Depends on the exact style of your riving knife, but you may be able to get a machine shop to just thin it for you? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
TerryMcK Posted November 30, 2013 Report Share Posted November 30, 2013 Swap to full kerf. The blade is only 3 thou thinner than the riving knife but it's not worth the worry. Quote Link to comment Share on other sites More sharing options...
krtwood Posted November 30, 2013 Report Share Posted November 30, 2013 They get a little narrower kerf with every sharpening so you wouldn't want to start without any clearance. Quote Link to comment Share on other sites More sharing options...
knotscott Posted December 1, 2013 Report Share Posted December 1, 2013 They get a little narrower kerf with every sharpening so you wouldn't want to start without any clearance. They typically only hit the face and the top to avoid changing the side clearance and side angle dimensions. Quote Link to comment Share on other sites More sharing options...
krtwood Posted December 1, 2013 Report Share Posted December 1, 2013 They typically only hit the face and the top to avoid changing the side clearance and side angle dimensions. The tooth is tapered so if they hit face then it gets narrower. Quote Link to comment Share on other sites More sharing options...
knotscott Posted December 1, 2013 Report Share Posted December 1, 2013 The tooth is tapered so if they hit face then it gets narrower. That's a great point I hadn't considered. Quote Link to comment Share on other sites More sharing options...
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