Soft glue on a concrete slab is the job where the wrong tooling costs you a day. Diamond segments load up and glaze, and once they stop cutting you are just heating the adhesive and pushing it around. Magna-Blades solve it with carbide. This is a 3-pack of EDCO Magna-Trap left-hand Magna-Blades, part 12501LC, complete and ready to drop into a multi-tooling disc.
Each blade is an 8-sided carbide-tipped block designed to strip coatings and clean floors without grinding into the concrete underneath. Eight sides is the practical benefit: as an edge dulls you rotate the carbide to a fresh facet rather than replacing the blade, which is why crews doing volume adhesive removal budget these as a rotating consumable instead of a one-time purchase. The blades run at a Concrete Surface Profile rating of 0 to 1, meaning they take the coating off and leave the slab close to as-found - the right result when another floor covering is going straight back down.
Left-hand (LH) blades are the more flexible option: they run on both single-disc and dual-disc grinders, where right-hand blades are limited to dual-disc machines. Directional tooling only cuts correctly when the rotation matches, so confirm your machine before ordering.
Built for
- Magna-Trap floor grinders, single or dual-disc models
- Magna-Trap Turbo Grinders in 7, 9 and 10 inch sizes
- Classic-style grinders retrofitted with a Magna-Trap multi-tooling disc
- Flooring contractors removing glue, thinset and carpet backing
- Crews needing coating removal without changing the slab profile
Use cases
- Glue and adhesive removal - soft carpet and vinyl adhesives that clog diamond tooling come up cleanly under carbide.
- Soft thinset removal after tile demolition, without gouging the slab.
- Tar and cutback removal from older commercial floors.
- Foam rubber carpet backing - the gummy residue left when old glue-down carpet is pulled up.
- Flaking paint and soft mastic where a diamond wheel would cut into the concrete more than the coating.
Specifications
- Quantity: 3 Magna-Blades per pack, complete
- Rotation: Left-Hand (LH) - for single and dual-disc grinders
- Carbide: 8-sided, replaceable, rotatable tungsten carbide
- Concrete Surface Profile (CSP) rating: 0 to 1
- Tooling classification: directional
- Ideal for: glue and adhesives, soft thinset, tar, foam rubber carpet backing
- Fits: Magna-Trap floor grinders, Magna-Trap Turbo Grinders 7, 9 and 10 inch, and classic-style grinders with a Magna-Trap multi-tooling disc
- Part number: 12501LC
Frequently asked questions
How many blades come in this pack?
Three complete Magna-Blades. Most grinders take blades in sets, so check how many positions your tooling disc has and order enough packs to fill it evenly.
What is the difference between left-hand and right-hand Magna-Blades?
Left-hand (12501LC) blades work on both single-disc and dual-disc grinders. Right-hand (12501RC) blades are for dual-disc machines only. Because the tooling is directional, the rotation has to match your machine to cut properly.
Will these grind or profile the concrete?
No, and that is intentional. At a CSP rating of 0 to 1 they remove the coating while leaving the slab close to its original profile. If you need an aggressive bonding profile, use diamond tooling after the coating is off.
What can I rotate when the carbide dulls?
The carbide is 8-sided and replaceable. Rotate to a fresh facet as each edge wears, which gives you eight working edges per block before replacement.
Do these fit Turbo Grinders?
Yes - Magna-Trap Turbo Grinders in 7, 9 and 10 inch models, plus Magna-Trap single and dual-disc grinders and classic grinders retrofitted with a Magna-Trap multi-tooling disc.
Are they good for hard epoxy?
They are aimed at thicker and softer coatings - glue, thinset, tar, soft mastic. For hard brittle epoxy, metal-bond diamond or PCD tooling generally works better.
Discount Cleaning Products is an authorized dealer for this line, with US-based support staff who work with these machines every day. If you are not certain this is the right part or size for your equipment, contact us before you order and we will confirm compatibility against your model number.
