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Recommend and angle grinder


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makita GA4541CT01

Is the daddy!

1400w

Variable speed (which is right handy for things like wire wheels, flappy disks etc)

 

Not the cheapest, but by far the best.

Above recommendations of brands may be OK too, but most manufacturers make more than one tool that looks the same but can have quite different innards.

 

Check out AvE on the youtube, he's got some good unbiased tool reviews.

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makita GA4541CT01

Is the daddy!

1400w

Variable speed (which is right handy for things like wire wheels, flappy disks etc)

 

Not the cheapest, but by far the best.

Above recommendations of brands may be OK too, but most manufacturers make more than one tool that looks the same but can have quite different innards.

 

Check out AvE on the youtube, he's got some good unbiased tool reviews.

 

Will not work on a generator

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Your 9inch discs are not rated for use on smaller grinders look at the max speeds on the disc

 

This is true and I'm sure the H&S people would say the same. I would always do what they say because they always live in the real world and are very intelligent.

 

BUT the reason 9 inch are rated at a lower speed is because of the increased forces that come with the increased rotating mass and to a lesser extent increased forces/ leverage on the shaft.

If anything I suspect the last 4.5 inch of a 9 inch disc is built stronger than a proper 4.5 inch one. Never had a problem myself doing this in 45 years.

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This is true and I'm sure the H&S people would say the same. I would always do what they say because they always live in the real world and are very intelligent.

 

BUT the reason 9 inch are rated at a lower speed is because of the increased forces that come with the increased rotating mass and to a lesser extent increased forces/ leverage on the shaft.

If anything I suspect the last 4.5 inch of a 9 inch disc is built stronger than a proper 4.5 inch one. Never had a problem myself doing this in 45 years.

 

I thought the big disks are rated lower rpm because the cutting edge of the disk moves faster the farther is is from the spindle axis. I'll bet money the actual speed of a 9" at the edge is exactly the same as a 4.5", given new unworn disks. If the speed is too high, weird gyroscopic forces come into play and can cause wobbling in the disk which gets exponentially worse untill it explodes. Saw a vid of them doing this with CDs in slow motion.

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Yes was looking at better quality machines. Burnt out a cheapy on it's second outing but bit disappointed with the Dewalt as have had lots of their kit and it's been fine but the grinder has not had a tough life and only halfway through it's first set of brushes :thumbdown:

 

Several mentions of Bosch on here so will go see what Toolstation and Screwfix have available.

 

Thanks Chaps :thumbup1:

 

Should have read your link Bob :blushing:. Fortunately they were out of stock when I popped in.

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