Grinder for lathe tools and more

[Ken_NJ]

I have a Micromark 7x16" lathe and have a few blank bits but do not have a grinder to shape and/or sharpen them. The bits are 1/4 inch. What do I need to look for in a grinder to do this? I suspect I would need one with 8 inch wheels. And of course the grinder would be used for other purposes.

For starters I was looking at the Grizzly T27305. It is variabe speed. (I do have other Grizzly tools) Although the left tool rest is grooved. I would think they have an accessory that is flat which would replace it. I posed this question to Grizzly.

 

[dabear3428]

I have a Micromark 7x16" lathe and have a few blank bits but do not have a grinder to shape and/or sharpen them. The bits are 1/4 inch. What do I need to look for in a grinder to do this? I suspect I would need one with 8 inch wheels. And of course the grinder would be used for other purposes.

For starters I was looking at the Grizzly T27305. It is variabe speed. (I do have other Grizzly tools) Although the left tool rest is grooved. I would think they have an accessory that is flat which would replace it. I posed this question to Grizzly.

so first off what type of bit? HSS or Carbide they will need different wheels.

 

[mmcmdl]

Any bench grinder or belt sander would work for 1/4" HSS lathe bits . This would depend on what else you wanted to do with it . A large 8" is nice for wire wheels and buffing besides grinding . Most people have seperate machines for each instead of swapping different wheels for different jobs .

 

[Eddyde]

That grinder would work. Although, a proper tool grinder will work much better:

Heavy-Duty Tool Grinder - Grizzly Industrial

<h1>H7762 Heavy-Duty 1/2 HP Tool Grinder</h1> <h2>Take control of tool maintenance.</h2> <p>The H7762 delivers professional sharpening power to your workshop.</p> <p>The motor is 1/2 HP, 110V, single-phase, reversible, and 3450 RPM.</p> <p>The H7762 features dual 80-grit silicon-carbide grinding...

www.grizzly.com

Remember, Do not grind on the side of a regular grinding wheel as they are not designed of that and could explode. You should switch to a recessed "cup" style wheel if you want to side grind.

 

[GeneT45]

That grinder would work. Although, a proper tool grinder will work much better:

Heavy-Duty Tool Grinder - Grizzly Industrial

<h1>H7762 Heavy-Duty 1/2 HP Tool Grinder</h1> <h2>Take control of tool maintenance.</h2> <p>The H7762 delivers professional sharpening power to your workshop.</p> <p>The motor is 1/2 HP, 110V, single-phase, reversible, and 3450 RPM.</p> <p>The H7762 features dual 80-grit silicon-carbide grinding...

www.grizzly.com

Remember, Do not grind on the side of a regular grinding wheel as they are not designed of that and could explode. You should switch to a recessed "cup" style wheel if you want to side grind.

I'd emphasize that a "proper" tool grinder is in no way necessary. However, I'd also emphasize (as you did) that you should not grind on the side of a "regular" grinding wheel (and there's no need to for most lathe tooling).

GsT