Features
- Bi-metal (BIM) serrated cutting edge for durability when cutting soft materials
- Segmented blade design suitable for straight or flush cuts
- Starlock interface for improved torque transfer and fast blade changes
- OIS compatibility with many existing multi-tool brands
- Color-coded interface and laser-etched blade markings for quick identification
- Manufactured in Switzerland for precision
Specifications
| Material | Bi-metal (BIM) |
| Blade Size | 4 in |
| Blade Length | 3.5 in |
| Blade Thickness | 0.375 in |
| Width (In) | 4 |
| Immersion Depth (In) | 0.25 |
| Application | Cutting carpet, cardboard, insulation and other soft materials |
| Interface | Starlock (fits OIS-compatible tools) |
| Pack Quantity | 1 |
| Country Of Manufacture | Switzerland |
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Oscillating multi-tool segmented knife blade with a bi-metal serrated edge designed for cutting soft materials such as carpet, cardboard and insulation. Uses the Starlock mounting interface for three-dimensional torque transfer and quick blade changes; remains compatible with OIS-compatible multi-tools.
Model Number: OSL400K
Project Ideas
Business
On-Site Carpet Trim & Repair Micro-Service
Offer fast doorway threshold trims, stair runner resizing, frayed-edge cleanup, and register cutouts. The Starlock blade lets you make clean flush cuts against baseboards and metal transitions with minimal disruption.
Eco Packaging Prototyping & Small-Batch Inserts
Design and produce custom cardboard inserts and mailer fitments for local e-commerce brands. Use the blade for quick, accurate slotting and scoring to validate designs before moving to die-cut runs.
Home Studio Acoustic Treatment Installer
Sell and install fabric-wrapped insulation panels and bass traps. Cut insulation, felt, and backing to exact sizes on-site for a clean fit, offering consultations, layout plans, and turnkey installation.
Van/Camper Insulation & Liner Fit-Outs
Provide thermal/acoustic insulation and carpeted wall/ceiling panels for van conversions. Precisely cut reflectix, foam boards, and carpet liners to contours and flush-trim around brackets and windows.
Event & Retail Pop-Up Prop Fabrication
Build lightweight displays, risers, and scenic elements from cardboard and foam for pop-ups, markets, and trade shows. On-site trims and last-minute adjustments are quick with the segmented serrated blade.
Creative
Custom Stair Runner + Landing Inlay
Use leftover carpet and the segmented serrated blade to flush-trim runner edges against baseboards and stair noses. Create an inlay on the landing by cutting geometric pieces and taping/seaming them into a unique pattern with crisp edges.
Cardboard Designer Storage
Build modular organizers, drawer dividers, and light-duty shelves from corrugated cardboard. The 4 in segmented blade makes long, straight cuts and clean window/handle openings, perfect for neat stackable systems.
Acoustic Wall Art Panels
Cut mineral wool/foam insulation and fabric wraps into triangles, hexagons, or waves to create sound-absorbing art. The blade excels at soft materials, giving tidy edges for tight seams and a gallery-quality look.
Indoor Putting Green or Play Mat
Trim synthetic turf or thick felt to room dimensions, cut precise cup openings, and flush-fit around door jambs and posts. Add foam underlayment pieces cut to size for speed and ball roll consistency.
Cosplay and Kids’ Playhouse Props
Craft helmets, armor, and set pieces from EVA foam and cardboard. The serrated edge slices soft sheets cleanly and the segmented profile helps with controlled flush cuts for windows, vents, and curved detail work.