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Megatron 4' Diamond Cup Grinding Removing Disc Wheel for Concrete, Paint, Epoxy, Glue and Mastic with CDB New Technology (Megatron 4')

4.6 (26) Write Review
Free shipping on orders over $29.99

$39.71

$ 19 .99 $19.99

In Stock

About this item

  • CDB Technology - Cluster Diamond Brazing Technology, a new concept and invented technology of diamond segment production. The purpose of CDB product is to make high level grinding & coating removal, through molecular sintering method.
  • HIGH LEVEL GRINDING & COATING REMOVAL - Optimized design for high performance on grinding & coating removal. Works for concrete, asphalt, epoxy coating, tile glue, urethane and paint. Feel the finest surface grinding and removing.
  • FAST & LONG-LIFE - Longer working life with fast removing speed enables easy work and less working fatigue.
  • SPECIAL SHAPE & ANGLE DIAMOND BEADS - Excellent grinding & removing process by special shaped & angle diamond beads
  • CLUSTER DIAMOND BRAZING TECHNOLOGY - Molded sintering and Single layer brazing creates solid shape brazed diamond tools. Molded diamond segments shows excellent performance with long-lasting life.


Cluster Diamond Brazing Technology (CDB)

CDB Procss is a new concept and invented technology of diamond segment production.
The purpose of CDB product is to make high level grinding & coating removal and to make it possible, diamond particles must be strongly griped through the molecular sintering method.
And also diamond concentratioln shoud be suitably designed with metal powser for high performance because high concentration is not always good for its ability.
CDB newest technology has these 2 strengths, strong grip power and suitable concentration and it can make optimised grinding and removing performance.

Arbor Hole : 7/8" - 5/8" (4")
Arbor Hole : 7/8" (5" & 7")
Grit size : Coarse #35
Diamond Grip : Molecular Bonding
Material : Diamond
Color : Metallic Gray
Available in 3 different sizes, 4" / 5" / 7"


Sandy K.
September 3, 2025
Worked great on large concrete porch slab. Removed Epoxy paint, latex paint and old carpet glue from large concrete slab.The 5" wheel came with a insert and I kept it in place and used the nut to press the insert offset.I could of removed it, but wanted to try to use it. It moved/offset slightly and still maintained center.The concrete slab was 40 foot long and 5 foot wide with 10' x 10' wider section on the end.It did the entire slab and over 3/4% of the wheel still remaining.I would recommend a grinder vaccum attachment that can attach to a shop vac with dust bags.You will want the dust bags, trust me.The wheel worked best with light pressure and letting the wheel do the work. It removed old carpet glue covered by epoxy paint that was also covered with outdoor latex paint.If you want to get more aggressive with the wheel, it will do it and chew up anything in front of it, then go over with light pressure for a smooth even finsish.I would buy again and will if I can wear it out.
Stephen Dougherty
August 26, 2025
First off, I have been a contractor for over thirty years. I purchased this tool because the basement bathroom, that was preplumbed before I signed the job has some issues. The concrete was done horribly. Around all the PVC pipes coming out of the floor were mounds of concrete. The entire floor was also painted. There were changes of a half inch. I purchased this tool really to just get the paint off but quickly learned that it chewed through the concrete like butter.Many reviews talk about ventilation. Believe them! I had no windows. With one shop vac I was blind within minutes. With two shop vacs I was able to just pause and get the job done. I ate up four filters on a 40sq ft bathroom. I use Rigid Shop Vacs.I bought the four inch model and it was more than enough to do the job.
Lisa Marie
August 23, 2025
Definitely removes old thick textured paint! Had to refinish a 850 sqft deck where 35 grit sandpaper wasn't making a dent. Thank goodness I ordered two of these things. Halfway through the deck the disc was losing its oomph. Several bits were completely sheared off from screws and overall the wheel had become worn and dull. As far as longevity, both discs were trash after sanding the entire deck. Regardless, this sanding disc was the only thing that successfully removed the old paint .... with that said, highly recommend.
Vino
July 28, 2025
Used the disc wheel in preparation to stain the concrete floor. The house sits on a slab and decided to stain the concrete floors. In order to do this, the concretes needs to be prepped, which includes giving it a rough texture so that the stain can adhere. The disc wheel worked great and was easy to maneuver. The disc wheel was also used to even out areas where I had to use epoxy in order to fill in some gaps on the concrete floor. Because of this tool, I did not have to hire someone. Was able to use this myself and save quite a bit of money.
Customer
July 25, 2025
I am removing paint from a cement block wall and the Megatron 4 inch cup grinding disc used in conjunction with my 4.5 inch Bosch grinder is doing an amazing job. As long as I keep the grinder moving and don't try to get to aggressive, this tool is just amazing. It removes the paint and very little of the block surface. I would highly recommend this product to others who want to tackle a project like mine. Of note, I am removing paint from a wall which is damp which may help with removal. Beware, this project creates a lot of dust, therefore a mask, and faceshield are recommended.
Brandi Griffitts
July 20, 2025
I use this to grind the corners and some edges after grinding a floor preparing for a garage floor epoxy system. I was pleasantly surprised by this little guy. I may be buying the 7” version to use to remove paints and old epoxy coatings. As a contractor who grinds floors for a living, I’d buy this again for that purpose.
Brandon Wheat
July 15, 2025
I used it to clean and smooth the adhesive from an old glue down laminate tiles from my bathroom floor in preparation for an epoxy floor. Did 40sqft in about an hour, pretty easy to control, and made a ton of dust.I didn't plan ahead by getting a dust shroud for my grinder so used a respirator and exhaust fan in the window which really helped.I forgot a picture between the grinding and the epoxy unfortunately but it was very clean but I can see the shadows of the tiles after the epoxy was applied, Probably could have gotten that too if I'd gone deeper?Anyway, happy with the product. I'll be using it again in the laundry room.
Customer
July 9, 2025
Very easy to finish job
RH
July 2, 2025
This one worked almost as well as the green cup wheel for paint stripping. This one was much less expensive so I thought I would give it a try. Good overall. The picture shows what I accomplished in about four seconds of grinding layers of paint off an old concrete pool.
サンチ
June 24, 2025
サイディングにガッツリ付いた分厚い塗剤と調整剤の除去作業に購入しました。少し時間はかかりますが、そこまで押さえ付ける必要も無くゆっくりと削れてくれますので、サイディングをそれほど痛めずに済みます。後は腕次第かと。釘の頭を削って飛ばしてしまうか心配していましたが、釘の頭に少し触れると高い音がしますのですぐに判ります。僅かに削る事はあっても、頭を飛ばしてしまう事は一度もありませんでした。カッタースクレーパー＋特専黒刃で、調整剤を下地のサイディングごと削っていくよりも、体力的にも楽で早く、仕上がりも格段に良かったです。
Jimmy Macdonald
June 8, 2025
I bought this wheel to strip paint off a concrete floor and it did pretty well. Worked alot better then the first wheel that had big blocks of diamonds. This wheel works great because of all the small bits
相原　啓
May 27, 2025
床、クションフロアを剥がした後の接着剤剥がしに使用。削れ具合、耐久性素晴らしい！
Client d'
May 15, 2025
Bon sur des surfaces moins dure.
Sandy K.
May 9, 2025
Worked great on large concrete porch slab. Removed Epoxy paint, latex paint and old carpet glue from large concrete slab.The 5" wheel came with a insert and I kept it in place and used the nut to press the insert offset.I could of removed it, but wanted to try to use it. It moved/offset slightly and still maintained center.The concrete slab was 40 foot long and 5 foot wide with 10' x 10' wider section on the end.It did the entire slab and over 3/4% of the wheel still remaining.I would recommend a grinder vaccum attachment that can attach to a shop vac with dust bags.You will want the dust bags, trust me.The wheel worked best with light pressure and letting the wheel do the work. It removed old carpet glue covered by epoxy paint that was also covered with outdoor latex paint.If you want to get more aggressive with the wheel, it will do it and chew up anything in front of it, then go over with light pressure for a smooth even finsish.I would buy again and will if I can wear it out.
Stephen Dougherty
May 3, 2025
First off, I have been a contractor for over thirty years. I purchased this tool because the basement bathroom, that was preplumbed before I signed the job has some issues. The concrete was done horribly. Around all the PVC pipes coming out of the floor were mounds of concrete. The entire floor was also painted. There were changes of a half inch. I purchased this tool really to just get the paint off but quickly learned that it chewed through the concrete like butter.Many reviews talk about ventilation. Believe them! I had no windows. With one shop vac I was blind within minutes. With two shop vacs I was able to just pause and get the job done. I ate up four filters on a 40sq ft bathroom. I use Rigid Shop Vacs.I bought the four inch model and it was more than enough to do the job.
Lisa Marie
May 1, 2025
Definitely removes old thick textured paint! Had to refinish a 850 sqft deck where 35 grit sandpaper wasn't making a dent. Thank goodness I ordered two of these things. Halfway through the deck the disc was losing its oomph. Several bits were completely sheared off from screws and overall the wheel had become worn and dull. As far as longevity, both discs were trash after sanding the entire deck. Regardless, this sanding disc was the only thing that successfully removed the old paint .... with that said, highly recommend.
Vino
April 26, 2025
Used the disc wheel in preparation to stain the concrete floor. The house sits on a slab and decided to stain the concrete floors. In order to do this, the concretes needs to be prepped, which includes giving it a rough texture so that the stain can adhere. The disc wheel worked great and was easy to maneuver. The disc wheel was also used to even out areas where I had to use epoxy in order to fill in some gaps on the concrete floor. Because of this tool, I did not have to hire someone. Was able to use this myself and save quite a bit of money.
Customer
February 27, 2025
I am removing paint from a cement block wall and the Megatron 4 inch cup grinding disc used in conjunction with my 4.5 inch Bosch grinder is doing an amazing job. As long as I keep the grinder moving and don't try to get to aggressive, this tool is just amazing. It removes the paint and very little of the block surface. I would highly recommend this product to others who want to tackle a project like mine. Of note, I am removing paint from a wall which is damp which may help with removal. Beware, this project creates a lot of dust, therefore a mask, and faceshield are recommended.
Brandi Griffitts
February 23, 2025
I use this to grind the corners and some edges after grinding a floor preparing for a garage floor epoxy system. I was pleasantly surprised by this little guy. I may be buying the 7” version to use to remove paints and old epoxy coatings. As a contractor who grinds floors for a living, I’d buy this again for that purpose.
Brandon Wheat
February 1, 2025
I used it to clean and smooth the adhesive from an old glue down laminate tiles from my bathroom floor in preparation for an epoxy floor. Did 40sqft in about an hour, pretty easy to control, and made a ton of dust.I didn't plan ahead by getting a dust shroud for my grinder so used a respirator and exhaust fan in the window which really helped.I forgot a picture between the grinding and the epoxy unfortunately but it was very clean but I can see the shadows of the tiles after the epoxy was applied, Probably could have gotten that too if I'd gone deeper?Anyway, happy with the product. I'll be using it again in the laundry room.
Customer
January 24, 2025
Very easy to finish job
RH
January 20, 2025
This one worked almost as well as the green cup wheel for paint stripping. This one was much less expensive so I thought I would give it a try. Good overall. The picture shows what I accomplished in about four seconds of grinding layers of paint off an old concrete pool.
サンチ
January 18, 2025
サイディングにガッツリ付いた分厚い塗剤と調整剤の除去作業に購入しました。少し時間はかかりますが、そこまで押さえ付ける必要も無くゆっくりと削れてくれますので、サイディングをそれほど痛めずに済みます。後は腕次第かと。釘の頭を削って飛ばしてしまうか心配していましたが、釘の頭に少し触れると高い音がしますのですぐに判ります。僅かに削る事はあっても、頭を飛ばしてしまう事は一度もありませんでした。カッタースクレーパー＋特専黒刃で、調整剤を下地のサイディングごと削っていくよりも、体力的にも楽で早く、仕上がりも格段に良かったです。
Jimmy Macdonald
January 9, 2025
I bought this wheel to strip paint off a concrete floor and it did pretty well. Worked alot better then the first wheel that had big blocks of diamonds. This wheel works great because of all the small bits
相原　啓
December 22, 2024
床、クションフロアを剥がした後の接着剤剥がしに使用。削れ具合、耐久性素晴らしい！
Client d'
December 21, 2024
Bon sur des surfaces moins dure.
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