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⚡ Cut smarter, faster, stronger — the pro’s secret weapon!
The Bosch OSL400F 4-inch Starlock® Oscillating Multi Tool Bi-Metal Segmented Saw Blade is a Swiss-made, precision-engineered accessory designed for professional-grade cutting. Featuring a durable bi-metal edge, segmented blade for straight and flush cuts, and the innovative Starlock interface, it delivers superior torque transfer and compatibility with leading oscillating tools. Ideal for demanding applications including wood with nails, this blade combines speed, accuracy, and reliability to elevate your multi-tool performance.

| Asin | B01DDA7VSM |
| Best Sellers Rank | #44,942 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #83 in Power Oscillating Tool Blades |
| Brand Name | Bosch |
| Color | Black |
| Compatible Material | Metal |
| Customer Reviews | 4.3 4.3 out of 5 stars (29) 4.3 out of 5 stars |
| Global Trade Identification Number | 00000346480504 |
| Included Components | (1) 4 In. Starlock® Oscillating Multi Tool Bi-Metal Segmented Saw Blade |
| Item Dimensions L X W | 0.27"L x 3.78"W |
| Item Type Name | power-oscillating-tool-blades |
| Item Weight | 27.22 g |
| Manufacturer | Bosch |
| Material Type | Metal |
| Model | OSL400F |
| Number Of Items | 1 |
| Number Of Teeth | 40 |
| Part Number | OSL400F |
| Set Name | Bosch Starlock Oscillating Multi-Tool Blades |
| Style Name | Segmented Saw Blade |
| Unit Count | 1 Count |
| Upc | 000346480504 |
| Warranty Description | Warranty |
User
great blade
excellent cutting, easy to control
User
Wonderful blade.
Use for my hardwood sculpture for detail work. Are absolutely worth the money. I don't mind paying more for quality and when it comes to Specialty blades Bosch seems most consistent in terms of quality and durability. And I work them hard/continuously.
User
Five Stars
My favorite blade for my Fien tool.
User
OK but not for non starlock version tools
Do not buy this for an older Bosch oscillating tool with the hex bolt retainer. The cupped part fits, but it is shallower and the bolt head will protrude above base of blade- making flush cuts like baseboards difficult. Bosch suggest I get a screw with a shorter head from, a “third party vendor” to solve the issue.
User
Broke within an hour
I lost my previous blade, so ordered this one. It came apart at the starlock connection within an hour of using to cut plywood. Contacted Amazon and they sent me a 3 inch bi-metal replacement which has worked fine. Maybe I got a dud...it looked like genuine Bosch but not typical Bosch quality.
Trustpilot
1 month ago
2 weeks ago