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  #1  
Old 07-18-2010, 06:46 PM
Reptile Reptile is offline
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Lightbulb 6x12 Surface Grinder for $300

I don't know if anyone is interested but Harbor Freight appears to be blowing out their 6x12 Surface Grinder for under $300. The stand is also on sale for $50. The same thing at Grizzly is $2,000.

http://www.grizzly.com/products/G5963




http://www.harborfreight.com/garage-...ine-33732.html


6" x 12" Surface Grinding Machine


Item # 33732 Manufacturer: Central Machinery


Only: $999.00
Sale: $293.97




Quick Overview

6" x 12" Surface Grinding Machine

  • Motor 3/4 HP, 110V, single phase, 3500 RPM
  • Cross travel: 8-1/4"
  • Longitudinal travel: 13-7/8"
  • Maximum work height: 8-3/4"
  • Work table: 6" x 12-1/2"
  • T-slots: 1/2" x 15-1/2"
  • Graduations: 0.001"
  • Overweight Item subject to $89.95 additional Freight Charge
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  #2  
Old 07-18-2010, 07:06 PM
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USMCPOP USMCPOP is offline
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Woof! Never understood why they even carried something like that.
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Old 07-18-2010, 08:51 PM
mtngun mtngun is offline
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Thanks for the tip, Reptile. I ordered the grinder and a chuck, even though it wasn't in the budget. Just too good a deal to pass up.
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Old 07-19-2010, 12:00 AM
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Dave Lee Dave Lee is offline
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That's a hell of a good price, if the thing's any good. That particular model has been around for a very long time. Unfortunately, I've never seen a review on it.

It's funny, that so many guys have a lathe and mill in their home shops but, no surface grinder. In the toolroom, the grinder was the final finisher of most every project. When work came off the mill, it always had a few extra thousandths on it, to be taken off by the surface ginder especially, after parts were heat reated. Even if they weren't you would want the precision results. Not to mention, the parts looked cool too.


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Old 07-22-2010, 01:53 PM
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It's certainly worth $300 to have any SG in the shop

The HF and Grizz machines are built much differently than any other SG I've ever seen, which is one reason for the low cost.

Every SG (except the HF & Grizz) have an electric motor belted to a spindle. The spindle is relatively long and carries a pair of preloaded angular contact bearings at the front, next to the grinding wheel. The rear of the spindle rides is an ordinary radial contact ball bearing. SG spindles are built very much like the spindle on a Bridgeport mill, and are highly accurate - both use ABEC-7 (precision grade) bearings at the working end - see second photo.

The HF & Grizz machines use the electric motor as part of the spindle support, and then add a direct coupled stub spindle supported by a radial contact bearing next to the wheel (see first photo).
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Old 07-22-2010, 03:50 PM
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And my 21 year old wannabe machinist was giving me grief about the spindle and such the other night when I showed him the unit. Not that he knew about belt drive, just that the spindle arrangement was different. Maybe there's hope for him yet? Lord knows he's opinionated and hard-headed enough to be a machinist.
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Old 07-23-2010, 01:56 AM
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I'm tempted, oh I'm tempted. We need a fingernail biting smiley. It would be a good grinder for me because, I'm coordinated to run one set up the way that one is, with the X travel on the right and the Y on the left. That's the way the old Abrasive brand surface grinder was in the toolroom. That is exactly, opposite to almost every other surface grinder made in the world.

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Old 07-23-2010, 06:53 AM
METALARCHER METALARCHER is offline
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Also tempted---- so I gave in!

i'm addicted to this stuff!
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Old 07-23-2010, 08:33 AM
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The HF link supplied shows the grinder at $999 and with a B/o for availability. Where's the discounted price sale page?

I want one.
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Old 07-23-2010, 08:36 AM
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Tom Zachman Tom Zachman is offline
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Quote:
Originally Posted by LW Hiway View Post
The HF link supplied shows the grinder at $999 and with a B/o for availability. Where's the discounted price sale page?

I want one.
Well Jef, when I clicked it a few daze ago it was available for said price.

I guess they cleared their inventory.
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