The CMT OMF251-X1 1-5/8" Multi-Knife with Three Cutting Edges is a Starlock-compatible oscillating blade engineered from High-Carbon Steel (HCS) for cutting, scraping, and removing soft and flexible materials. Designed for use with any multi-cutter that accepts the Starlock arbor system, this versatile knife blade handles carpeting residues, sealant, foam insulation, leather goods, PVC flooring, cardboard, bitumen shingles, and roofing paper. Whether you are pulling, pushing, or pressing through soft material, the blade's geometry allows the cutting action to follow naturally - making it a go-to accessory for flooring removal, roofing prep, and general demolition work. Sold as a single piece.

Key Features

• Three Cutting Edges - each of the three usable edges can be rotated into position as the previous one dulls, effectively tripling the working life of a single blade and reducing replacement frequency.
• 1-5/8" Cutting Height - the 41mm blade profile provides a wide contact area for scraping and slicing through soft materials like foam insulation, sealant, and roofing fabric in fewer passes.
• High-Carbon Steel (HCS) Construction - HCS delivers the flexibility needed to follow irregular surfaces and contours without snapping, making it well suited for soft and pliable materials such as PVC flooring, leather, and cardboard.
• Starlock Arbor Compatibility - the Starlock mount provides a secure, tool-free blade change on any Starlock-compatible oscillating multi-cutter, eliminating wobble and improving energy transfer from the machine to the blade.
• Multi-Motion Cutting Action - material can be cut simply by pulling, pushing, or pressing, giving the user flexibility in technique and approach angle for tight or awkward removal jobs.
• Broad Material Range - one blade covers carpet, moquette, PVC floors, leather, cardboard, bitumen shingles, and roofing paper, reducing the need to swap blades between materials on a single job site.

Why This Product

• The three-edge design means you get three times the usable life from a single blade - when one edge wears, simply rotate to a fresh cutting surface rather than stopping to find a replacement.
• Flexible HCS construction makes this blade the right choice for soft, compressible, or layered materials like foam insulation and sealant residue that would bind or resist a rigid blade.
• The Starlock mounting system locks the blade securely into the tool arbor, maximizing oscillation efficiency and reducing vibration - important when working extended sessions on carpet or flooring removal.
• The pull, push, or press cutting capability makes this blade practical for grout line cleaning between tiles, underlayment scraping, and roofing paper removal - tasks that often require different directions of force depending on the surface condition.

Specifications

• Manufacturer Part Number: OMF251-X1
• Brand: CMT Orange Tools
• Cutting Height: 1-5/8"
• Blade Width: 41mm (Multi-Knife)
• Blade Material: High-Carbon Steel (HCS)
• Tooth Style: Three Cutting Edges
• Arbor Type: Starlock (SL)
• Quantity: 1 Piece

Approved Applications

• Removing carpeting and carpet residues
• Cutting and removing PVC flooring
• Cutting leather goods
• Cutting and removing bitumen shingles
• Cutting and removing roofing paper and roofing fabric
• Cutting foam insulation and soft sealant
• Cutting and removing cardboard
• Cleaning grout between tiles