Studio view of the 4 inch bi-metal segmented saw blade displaying the Starlock interface and Bosch branding.
Infographic diagram showing the blade dimensions of 4 inches wide by 3 inches tall and highlighting the segmented bi-metal cutting edge.
Close-up action shot of the blade attached to a multi-tool performing a flush cut on a wooden door jamb.
Action shot of the blade cutting a rectangular opening in laminate flooring for a vent installation.
Front view of the retail blister packaging for the Bosch Starlock blade series displaying compatibility and durability features.
Graphic titled Change Blades in 3 Seconds showing a blue multi-tool head engaging with a Starlock blade.Graphic titled Change Blades in 3 Seconds showing a blue multi-tool head engaging with a Starlock blade.
Graphic illustrating the quick-change mechanism of the Starlock interface with a blade ready to be snapped into place.
Infographic titled How to Change Starlock Blades demonstrating the two-step lever pull and snap-in process.
Graphic titled Fits Multiple Brands listing compatible manufacturers such as Fein, Milwaukee, Makita, and Ridgid connected to the Starlock interface diagram.
Bosch GOP18V-28 Product Video promotion
Studio view of the 4 inch bi-metal segmented saw blade displaying the Starlock interface and Bosch branding.
Infographic diagram showing the blade dimensions of 4 inches wide by 3 inches tall and highlighting the segmented bi-metal cutting edge.
Close-up action shot of the blade attached to a multi-tool performing a flush cut on a wooden door jamb.
Action shot of the blade cutting a rectangular opening in laminate flooring for a vent installation.
Front view of the retail blister packaging for the Bosch Starlock blade series displaying compatibility and durability features.
Graphic titled Change Blades in 3 Seconds showing a blue multi-tool head engaging with a Starlock blade.Graphic titled Change Blades in 3 Seconds showing a blue multi-tool head engaging with a Starlock blade.
Graphic illustrating the quick-change mechanism of the Starlock interface with a blade ready to be snapped into place.
Infographic titled How to Change Starlock Blades demonstrating the two-step lever pull and snap-in process.
Graphic titled Fits Multiple Brands listing compatible manufacturers such as Fein, Milwaukee, Makita, and Ridgid connected to the Starlock interface diagram.
Bosch GOP18V-28 Product Video promotion
BOSCH

Bosch Starlock Oscillating Multi Tool Blade 4 Inch Bi-Metal Segmented Wood Metal Cutting Flush Cut Saw OSL400F

In stock
SKU: OSL400F
$20.97 USD

Description

Bosch Promtional Logo Logout

Unlock Maximum Torque and Precision with Starlock Technology

The Bosch OSL400F 4-Inch Starlock® Oscillating Multi-Tool Bi-Metal Segmented Saw Blade represents a new dimension in power transmission and utility. Featuring the revolutionary Starlock three-dimensional interface, this accessory provides a completely integrated system between your tool and the blade. Unlike flat interfaces, the 3D shape ensures the highest torque transfer, significantly reduced vibration, and superior performance in demanding applications. While designed for the next generation of high-performance Starlock tools, this blade remains backward compatible with standard OIS systems, ensuring it fits the oscillating tool you already own.

Swiss-made for professional precision, the OSL400F is engineered with a high-quality Bi-Metal cutting edge that excels in resisting wear when cutting hard materials. The 4-inch segmented design is ideal for making long, straight cuts in hardwood, wood with nails, and PVC, as well as flush cuts against surfaces like door jambs or baseboards. The color-coded interface and laser-etched markings make it easy to identify the right blade for the job instantly, keeping your workflow efficient and your cuts clean.

Key Features

  • Starlock Interface: 3D tool-accessory connection delivers maximum torque transfer and reduced vibration.
  • Bi-Metal Durability: Premium construction offers extended life when cutting hardwood, wood with nails, and non-ferrous metals.
  • Segmented Design: Flat side allows for flush cutting against existing surfaces; round edge enables precise rotation cuts.
  • Universal Compatibility: Fits Starlock tools and is backward compatible with OIS oscillating tools.
  • Precision Engineering: Swiss-made quality ensures accurate, clean cuts and professional reliability.
  • Easy Identification: Color-coded interface helps users quickly select the correct blade for the material.

What's Included

  • (1) 4 In. Starlock® Bi-Metal Segmented Saw Blade

Specifications

Brand Bosch
Model Number OSL400F
Sub Brand Starlock
Blade Diameter 4 in.
Blade Material Bi-Metal (BIM)
Blade Type Segmented
Application Wood, Hardwood, Wood w/ Nails, PVC
Interface Type Starlock (OIS Compatible)
Origin Switzerland
Package Quantity 1
Pro-Tip: The segmented (round) shape of this blade is specifically designed to allow you to cut into corners without "overcutting" the adjacent wall or surface. When making a plunge cut into a corner, use the rounded edge to gently rock the blade into the material for a precise stop point.