Product Description
CMT OMS21-X1 1-1/8" Sharp Corner Scraper is a high-carbon steel (HCS) oscillating scraper blade designed to fit the Fein SuperCut and Festool Vecturo multi-tool platforms via the OIS arbor interface. With a 28mm (1-1/8 in.) blade width and a 2-inch cutting height, this sharp corner scraper excels at detail work in tight spaces - cutting soft expansion joints, removing window putty and sealing compound, and slicing through insulation materials. Whether you are clearing caulk from window frames, stripping flexible sealants, or cutting through foam insulation, this CMT blade delivers focused, controlled scraping performance with a geometry purpose-built for corner access.
Key Features
- 28mm (1-1/8 in.) sharp corner blade geometry - concentrates cutting force into the corner of a scraper edge, making it possible to reach into tight joints and corners that wider blades cannot access.
- High-carbon steel (HCS) blade material - provides the hardness needed to scrape and cut soft-to-medium materials such as expansion joint filler, window putty, sealing compound, and insulation without dulling quickly under repeated use.
- 2-inch cutting height - gives the blade a generous working depth, so it can engage thick layers of material or reach deeper into a joint in a single pass.
- OIS arbor compatibility with Fein SuperCut and Festool Vecturo - drops straight onto your existing multi-tool without adapters, so you can swap this blade in and out quickly on the job.
- Designed for multi-material use - cuts soft expansion joints, window putty, sealing compound, and insulation materials from the same blade, reducing the number of accessories you need to carry to a job site.
Why This Product
- Corner-specific geometry for precise scraping - the sharp corner profile gives you a clean, defined cutting edge exactly where flat scraper blades fall short, especially when clearing sealant or putty flush against a window frame or joint edge.
- Built for Fein SuperCut and Festool Vecturo users - the OIS arbor fit means zero guesswork about compatibility; this blade is engineered to mount directly on these two oscillating platforms.
- Handles a wide range of soft materials in one blade - from flexible expansion joint filler to window sealing compound and insulation, this HCS scraper eliminates the need to switch between specialty blades for each material type.
- Sold as a single piece - lets you add exactly the quantity you need without purchasing multipacks, making it a straightforward replacement or first-time addition to your oscillating tool accessory kit.
Specifications
- Manufacturer Part Number: OMS21-X1
- Brand: CMT Orange Tools
- Blade Width: 1-1/8 in. (28mm)
- Cutting Height: 2 in.
- Blade Material: High-Carbon Steel (HCS)
- Arbor Type: OIS (Fein SuperCut / Festool Vecturo)
- Quantity: 1 piece
Approved Applications
- Cutting soft expansion joints
- Cutting window putty and sealing compound
- Cutting insulation materials
- Sharp corner scraping in multi-material applications
Frequently Asked Questions
Which oscillating multi-tools is this scraper blade compatible with?
This blade is compatible with the Fein SuperCut and Festool Vecturo oscillating tools. It uses the OIS arbor interface and mounts directly to these platforms without requiring a separate adapter.
What materials can this sharp corner scraper cut or remove?
The OMS21-X1 is designed for multi-material use. It is suited for cutting soft expansion joints, cutting window putty and sealing compound, and cutting insulation materials.
What does the 2-inch cutting height mean in practical use?
The 2-inch cutting height refers to how deep the blade can engage with a material. This gives you a generous working depth for scraping thick layers of sealant, putty, or insulation filler in a single pass.
Why is high-carbon steel (HCS) used for this type of scraper blade?
High-carbon steel provides a balance of hardness and toughness that suits soft-to-medium materials like expansion joint filler, window putty, sealing compound, and insulation. It holds a sharp edge through repeated scraping cycles on these material types.
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