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SporGain

SporGain [Updated Lawn Mower Blade Sharpener 15°-45° Adjustable Frame

  • Based on 1,966 reviews
Condition: New
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Availability: Only 10 left in stock, order soon!
Fulfilled by Amazon
Arrives Sep 30 – Oct 1
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Color: Black


Features

  • [ Updated ] Lawn Mower Blade Sharpener: SporGain mower blades sharpener suitable for Blades standard straight, mulching and high-lift mower.
  • Fits 1.65"3.60" Mower Blades: lawn mower blade sharpener jig is designed to accommodate mower blades from 1.65" to 3.60" wide, making it suitable for a wide range of lawn mower blades.
  • High-Quality Construction: This lawnmower blade sharpener jig firmly and securely holds the blades in place.
  • Lawnmower Blade Sharpener: The lawn mower blade sharpener tool equipped with Ball Bearing, 25mm diameter enlarged Handle and 4 Adapter Screws for angle grinder.
  • 15-45 Adjustable: This mower blade sharpener kit lets you manually adjust the angle of blade holder and angle grinder Bushing by hands (thumb screws). Support you to sharpen multiple blades efficiently.
  • Easily setting: open box, fix the lawn blade sharpener on table/workbench, some setting and adjusting, then start to sharpen blades. You will know the accuracy and efficiency of this tool.
  • Universal Compatibility: This lawn mower blade sharpening jig is compatible with most angle grinders.

Description

Join over 100,000 satisfied customers who trust this sharpener for reliable, professional-grade performance. Proven in real-world use, it delivers consistent precision, durability, and results you can depend on. Precision Control from 15°–45° Fits 1.65"–3.60" Blades What types of lawn mower blades can it sharpen? This mower Blade sharpener is suitable for high-lift, low-lift, Gator (serrated), and flat-edge blades—covering all major blade types. Compatible with most metal blades, it serves as an ideal sharpening tool for both home and professional lawnmowers. What’s the sharpening angle range & how to adjust? 15°–45° wide adjustable angle. Tweak thumb screws to set—no professional skills. Does the mower blade sharpener match my existing angle grinder? Yes! Comes with 4 guide pins/adapter screws, fits most market angle grinders, precise fit reduces wobble, no need for new grinder. What blade width is compatible? Fits 1.65"–3.60" wide blades with universal holder, solves width incompatibility issues for most regular mower blades. Does the mower blade sharpener ensure stable & precise sharpening? Absolutely! Precise bushing/pin reduces grinder wobble. Sturdy holder secures blades—fixed angle avoids manual errors for sharp, even edges. Mower Blade Sharpener Mower Blade Sharpener Lawnmower Blade Sharpener Mower Blade Sharpener Kit Mower Blade Sharpener Kit Mower Blade Balancer Mower Blade Removal Tool

Product Dimensions: 13.5 x 9 x 3.4 inches


Item Weight: 2.92 pounds


Manufacturer: SporGain


Item model number: LMBS10Black


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 30 – Oct 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Makes Sharpening Lawn Mower Blades Easy
Color: Blue
This sharpening guide made it much easier to maintain a consistent angle while sharpening my mower blades. It's well built, adjusts easily, and works smoothly with an angle grinder. The ball-bearing handle makes it easy to control, and my blades came out sharp and even. Great tool for anyone who maintains their own lawn equipment. ... show more
Reviewed in the United States on July 22, 2026 by RJ Skalet
    • This sharpener/balancer is great!!!
Color: Dark
WOW!!! THIS THING IS GREAT!!!-----------Blades are super sharp, balanced and cutting grass "Like who'd a thought it" Great pricing too!!! THANKS!!!
Reviewed in the United States on August 12, 2026 by Neil
    • Great Jig at an even better price point
Color: Black
This works great to get a nice sharp edge on my mower blades. First, I have two sets of blades (6 total blades). I keep them at different angles for the different style of blade (high lift vs gator/mulch). This jig allows an incredibly easy adjustment of angle so for this it’s awesome. Adjustments are super easy all around. I feel safe during use, no worries that the blade is going to come loose or misalignments that I’ll ruin a blade. My one complaint is that the joint in the arm for the grinder, is a teeny bit loose allowing for a little play. I manually remedy this by applying slight pressure in one direction, to maintain consistency in each pass with the grinder. This is minor but it IS the reason I can’t give this five stars. Overall, I would absolutely purchase this again, given the price of other “name brand” jigs. This still allows me to get a fresh, consistent edge on my blades. ... show more
Reviewed in the United States on July 8, 2026 by Mike
    • True angle & seamless follow-through.
Color: Black
Assembly was quick and easy. Mounting hardware, including jig hardware, of high quality. Took the guesswork and stability issue out of sharpening thus complete sharpening was a mere ten-seconds per side. Worked well with my mulching blades too. Easily adjustable, and seems to be stable enough to offer a long useful life. For my use 30-degree sharpening was perfect and really made a difference in my first use of the sharpened blades. Perfect addition to the DIY garage. ... show more
Reviewed in the United States on August 31, 2026 by RMS
    • Surprised how well it works!
Color: Black
I was pleasantly surprised how well this jig works. Have to be honest, I had my doubts. I had to update my grinder since the handle came out of the frame a slight angle but the new grinder works perfect on this. I sharpened 6 blades which did not take very long and they now have the perfect angle they should, very sharp too. They look like they were professionally sharpened. I was amazed how bad my angle was using a bench grinder all these years, guess that's why they dulled so quickly! Just need to pay attention to your forward movements so you don't veer off to either side, keeping your angle true. Very please with this product and would recommend. ... show more
Reviewed in the United States on August 28, 2026 by KA
    • Cost and adequate performance
Color: Black
Well pleased with purchase. I have used it to sharpen six mower blades and was not disappointed. Some reviewers noted the angle adjustment is off. If you want a thirty degree grind angle you may need to set the angle different from thirty degrees due to relief twist in the blade. My blades have a fifteen degree twist so I have to set the angle to forty five degrees to get a thirty degree grind. The sharpener could be a little less loose; however, for the price it is acceptable and does a great job. ... show more
Reviewed in the United States on July 16, 2026 by VC Alabama
    • Well built and easy to use blade holder
Color: Black
Love this blade holder. Makes sharpening mower blades so much easier and faster. Allows me to sharpen the blades with a uniform and sharp edge. I would recommend this product to others. Well built and easy to use.
Reviewed in the United States on August 23, 2026 by Jeff W.
    • Worked Great For Sharpening Mower Blade
Color: Blue
I purchased this to sharpen the blades on my Honda HRX217HYA lawn mower with the twin blade mulching system. I had always just used a file to sharpen the blades and I am sure that it was not very preceise at all. I have two sets of blades that I alternate. I saw this system and after watching some YouTube videos, I decided to give it a try. I mounted the lower angle piece to a 2x4 and clamped the 2x 4 into my Workmate bench and set the first blade into the unit. I did need to adjust the 4 bolts that clamp the blade onto the sharpener since they were too low for the bigger blade to fit in. After adjusting the 4 bolts so the blade was secure I clamped it in and set the angle adjustment to 35 degrees. I only had to do about 5 passes with my angle grinder and a 60 grit flapper disc before the blade had a nice sharp edge. I put the blade on my balancer and just needed to make one more pass on the heavy side to get it in balance. After I finished the first blade I readjusted the 4 holding bolts for the smaller blade and sharpened it. Like the bigger blade, I needed to adjust the balance. The blades had kind of a slight ragged edge so I just ran a file once over the edge to remove the burrs. Like others have stated, this "Updated" model does not seem to have a ball bearing in the pivoting section where the two beams connect, even though the picture and description shows it has one. This is a disappointment, but I guess "Upated" does not always mean better, just different. This erroneous description is the reason I took off a star. I liked that it came with the 4 lag bolts to secure it to the 2x4. I have a Hercules 4 1/2" angle grinder and one of the provided adapter screws fit the grinder perfectly. For the money it works good, and since I only have one mower and two sets of blades it fills my needs. ... show more
Reviewed in the United States on July 26, 2025 by Gary C

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