metal blade for delta

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Forum topic by Andrewbarbarian posted 09-22-2020 02:20 PM 236 views 0 times favorited 4 replies Add to Favorites Watch
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20 posts in 739 days

09-22-2020 02:20 PM

I have a Delta 14” bandsaw.

I can’t seem to find or figure out which blade to use to cut aluminum.

Can someone please offer a few options. I normally buy Olson wood blades just because of their price point. So if you could recommend a name brand at an affordable price.

When I look at Olsen’s web site it says their metal blades are for 93 3/4. While the wood are 93 1/2. Do I just get it and tighten it more to take up slack?

4 replies so far

View John Smith's profile

John Smith

2725 posts in 1045 days

#1 posted 09-22-2020 02:46 PM

Andrew – please expand on what you will be cutting, how thick, how often, how much, etc.
there may be more in play than just a blade.
there are several recent posts on this same subject.
if you use the search feature, you may find some good information there.


-- there is no educational alternative to having a front row seat in the School of Hard Knocks. --

View MrRon's profile


5942 posts in 4126 days

#2 posted 09-22-2020 03:13 PM

Any blade will cut aluminum. Just make sure you have at least 2 teeth in contact with the thickness of aluminum you are cutting. A slower speed than that used for wood should be used. You can change the pulley on the motor to one that is larger and you will need a new vee belt. Take care when cutting thick material because aluminum heats up quickly when being cut and gets hot to hold. You can also cut thin aluminum sheet on a table saw. You can use 6-1/2” metal cutting blades. You must wear safety glasses as aluminum chips will fly all over you and will be hot. You can also sandwich thin sheet between 2 layers of plywood.

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20 posts in 739 days

#3 posted 09-22-2020 03:20 PM

The project is re-doing some dash pieces on my aluminum boat. Most of the cutting will be 1/8th thick plate. Probably a total of 3ft if you add up all the little cuts of 6 inch here…12 inches there…3 inches here…etc. I know its not the best tool for the job but I know it will due if I get the right blade. I will probably cut more small pieces in the future but that’s how much I have in the immediate future.

View runswithscissors's profile


3118 posts in 2908 days

#4 posted 09-23-2020 04:50 AM

A fairly fine blade (6 tip?) will do just fine. No need for a special blade. Aluminum does tend to clog teeth, but that can be partly alleviated by lubing the blade with a “dry” spray lubricant, or even WD40. You may have to stop from time to time to pry built-up aluminum out of the teeth. The blade will not get hot, because no portion of the blade spends more than a split second in the 1/8” of aluminum, and the 93 + inches of blade have plenty of time to cool down as the blade makes its circuit.

I cut aluminum with whatever woodcutting blade is on the tool—bandsaw, miter say, table saw. Table saw throws lots of chips, and I like full face coverage and even heavy gloves, because those chips sting. Don’t wear fleece, as you will be plucking the chips out of there with needle nose pliers.

Thick aluminum is more challenging, as it builds up heat—not in the blade, but in the metal itself. But that is a different problem.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

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