Lawn Mower Blade Sharpener - RBG-712 Review

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Cyrus
Posts: 104
Joined: July 12th, 2016, 12:42 pm
Location: Zone 6B - Fairfield County, CT
Grass Type: Zoysia
Lawn Size: Not Specified
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Lawn Mower Blade Sharpener - RBG-712 Review

Post by Cyrus » May 5th, 2017, 11:26 am

http://www.rbggrinders.com/712.html

So you do in Fact Pay for what you Get! After reading many reviews here and from Google, I decided to go with the RBG-712. Yes, it is expensive ($399 +/-). But it was the only one I saw that had built in 30 degrees angles to properly sharpen blades. So I looked it up on eBay and found one for $390 with Free Expedited S&H.
http://www.ebay.com/itm/RBG-Lawn-Mower- ... SwmmxW1yhC
I then actually called up OMB Warehouse and asked a bunch of questions, which in the end I felt there would be Zero Buyers Remorse!
https://www.ombwarehouse.com/tools/mowe ... -grinders/
I decided to pull the Trigger. My only mistake was not buying their Package deal for $500 . . .
http://www.ebay.com/itm/RBG-7-Grinder-7 ... SwHnFVjAQp
This comes with the Grit Guard and an extra grinding wheel for my inventory. The OMB rep said that this grinder does throw a tremendous amount of grit out the back and I would be glad I bought it. That said, I bought the Grit cover and extra wheel over the phone with an acceptable $8 S&H charge. This actually turned out to be less than the $500 eBay package deal by $20.

So I was feeling good about my purchase on Wed morning. Thursday afternoon I get a phone call on my cell and it's FedEx. They have tried twice on Thursday to deliver but nobody was home. They wanted to know if they could meet me. I said 3:30pm at my house. I left work at 3pm got home by 3:30 and the FedEx guy was in my driveway. I signed for the package and humped the 50lbs + box into my workshop. I unboxed it and it came out as a total machine with nothing to assemble. Note, this grinder base has 4 holes that you could if you wanted to, screw the machine down to your work bench. For me the machine is so heavy that I didn't need to do this; it doesn't budge. I plugged it in and fired it up and it came immediately to life. So what the hell, I grabbed a 22" Toro Mulch blade that was dinged and dull and started to drag it through the 30 degree angle. After 6 slow pulls on each side I inspected it and it was razor sharp !

So in ending this review, I have gotten full value for my spending dollars. This is a well built, American made, machine that does exactly what it was built for! Buying from OMB was one of the best experiences I have ever had. Ordered it around lunchtime on Wednesday and had it running on my work bench by 3:30pm Thursday! How much better can Customer Service get? :yahoo:

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mitten
Posts: 266
Joined: October 9th, 2016, 10:53 am
Location: West Michigan - Zone 6
Grass Type: Midnight, Diva, Everglade KBG, plus Fiesta4 PR and Zodiac Fescue
Lawn Size: 3000-5000
Level: Some Experience

Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by mitten » May 6th, 2017, 11:51 pm

Wow, sounds like quite the machine. How many blades do you sharpen a year?

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Cyrus
Posts: 104
Joined: July 12th, 2016, 12:42 pm
Location: Zone 6B - Fairfield County, CT
Grass Type: Zoysia
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Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by Cyrus » May 7th, 2017, 8:08 am

mitten wrote:
May 6th, 2017, 11:51 pm
Wow, sounds like quite the machine. How many blades do you sharpen a year?
I like to sharpen before or after each cutting to make sure it is razor sharp

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llO0DQLE
Posts: 1420
Joined: August 4th, 2013, 3:20 pm
Location: Edmonton, AB Canada
Grass Type: KBG and Creeping Red Fescue
Lawn Size: 1000-3000
Level: Some Experience

Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by llO0DQLE » May 21st, 2017, 7:47 pm

I thought it's supposed to be butter knife sharp, not razor sharp?

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Cyrus
Posts: 104
Joined: July 12th, 2016, 12:42 pm
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Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by Cyrus » May 22nd, 2017, 7:38 am

llO0DQLE wrote:
May 21st, 2017, 7:47 pm
I thought it's supposed to be butter knife sharp, not razor sharp?
Not quite sure what you mean - Do Reel Mowers come back with butter knife sharp reels?


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llO0DQLE
Posts: 1420
Joined: August 4th, 2013, 3:20 pm
Location: Edmonton, AB Canada
Grass Type: KBG and Creeping Red Fescue
Lawn Size: 1000-3000
Level: Some Experience

Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by llO0DQLE » July 27th, 2017, 8:37 pm

Cyrus wrote:
May 22nd, 2017, 7:38 am
llO0DQLE wrote:
May 21st, 2017, 7:47 pm
I thought it's supposed to be butter knife sharp, not razor sharp?
Not quite sure what you mean - Do Reel Mowers come back with butter knife sharp reels?
I have read from some here that a rotary mower's blade doesn't need to be sharpened to razor sharp. Just butter knife sharp, as in, as sharp as a butter knife. Reel mowers are different.

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Cyrus
Posts: 104
Joined: July 12th, 2016, 12:42 pm
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Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by Cyrus » July 28th, 2017, 7:04 am

. . . . well, Razor sharp is what I'm using and it cuts my Zoysia like a 4 blade Gillette razor does over my beard. My lawn has never looked better after each cut!

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llO0DQLE
Posts: 1420
Joined: August 4th, 2013, 3:20 pm
Location: Edmonton, AB Canada
Grass Type: KBG and Creeping Red Fescue
Lawn Size: 1000-3000
Level: Some Experience

Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by llO0DQLE » July 28th, 2017, 12:19 pm

This is my KBG cut with my rotary sharpened to a bit more than butter knife sharp. Would you say that it would look better if my blade was sharper? Cut looks pretty good to me. Not sure how much better it can get.

Image

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Cyrus
Posts: 104
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Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by Cyrus » July 28th, 2017, 12:27 pm

Looks real nice to me also looks really healthy - great job! Not sure how much better than that you can hope for ;-)

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llO0DQLE
Posts: 1420
Joined: August 4th, 2013, 3:20 pm
Location: Edmonton, AB Canada
Grass Type: KBG and Creeping Red Fescue
Lawn Size: 1000-3000
Level: Some Experience

Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by llO0DQLE » July 28th, 2017, 1:04 pm

Thanks! Was curious if I could get a better cut with razor sharp as I've never sharpened my blade to that degree before..

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Cyrus
Posts: 104
Joined: July 12th, 2016, 12:42 pm
Location: Zone 6B - Fairfield County, CT
Grass Type: Zoysia
Lawn Size: Not Specified
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Re: Lawn Mower Blade Sharpener - RBG-712 Review

Post by Cyrus » July 28th, 2017, 1:45 pm

llO0DQLE wrote:
July 28th, 2017, 1:04 pm
Thanks! Was curious if I could get a better cut with razor sharp as I've never sharpened my blade to that degree before..
Try it - No Danger there :-)

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