









⚡ Cut smarter, not harder — the pro’s choice for unstoppable precision!
The Bosch OSL400F 4 in. Starlock® Oscillating Multi Tool Bi-Metal Segmented Saw Blade is a Swiss-made, professional-grade accessory designed for high-torque, low-vibration cutting. Featuring a durable bi-metal edge, laser-etched identification, and a Starlock interface compatible with major brands, it excels in cutting wood with nails and offers versatile straight or flush cutting capabilities for demanding remodeling and construction tasks.






















| ASIN | B01DDA7VSM |
| Best Sellers Rank | #33,301 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #63 in Power Oscillating Tool Blades |
| Brand | Bosch |
| Color | Black |
| Date First Available | March 24, 2016 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00000346480504 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.96 ounces |
| Item model number | OSL400F |
| Manufacturer | Bosch |
| Material | Metal |
| Number of Teeth | 40 |
| Product Dimensions | 0.27"L x 3.78"W |
| Set Name | Bosch Starlock Oscillating Multi-Tool Blades |
| Style | Industrial |
| UPC | 000346480504 |
R**U
Good blades
Nice pack of blades. Name brand. Strong. Sharp. Good value
R**R
Great blades
These things are expensive but man do they last. Remodeling a house and spent a good but of time yesterday cutting through ancient heart pine that's about as hard as a rock along with a ton of nails. Still on the first blade and hasn't shown any signs of slowing down. Usually I buy a Fien assortment pack that comes out to around $5 a blade but they were out of stock so these were the next best quality blade at a decent price. It appears these hold up better than the Fien when cutting nails. Also the slight curve in the blade makes plunge cuts super easy. These are not cheap by any means but way better than buying a single blade locally for $20 a pop.
W**R
Good Quality Multi-Tool Blade
High Quality Worth the extra money for name brand
S**E
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.
M**O
Nice quality, but a bit short
A narrower version of this blade ships with the Bosch tools. This one is the widest blade Bosch makes at 2.5" inches. The slight curvature of the blade makes it easier to start cuts, control, and guide the blade. Bosch sells a similar blade, the OSL212JF. At first glance these two blades look similar but the main difference is in the style of teeth, as designated in the last digits of the model number. The Japanese tooth version of the blade (JF) cuts more aggressively in wood but you have to be careful not to hit any nails or metal. This version of the blade (F) does't cut as fast in wood but you can use it to cut through nails without a worry. It also leaves a cleaner cut in wood than the Japanese tooth version. The blade can plunge all the way through a 2x4, but just barely. The blade ideally should be at least a 1/4" longer, which would make it much more useful, and for that I've removed a star. If you're not familiar with Starlock blades, they're a quick-release mount blade primarily designed to be used on Starlock mount tools. However you can use these blades on most other non Starlock oscillating tools. Some tools may require an adapter which Bosch sells. If you buy an oscillating tool that has a Starlock mount please note you can only use Starlock blades, you will not be able to use your non Starlock blades on a Starlock tool. If you currently own a non Starlock oscillating tool and plan to buy a Starlock tool at some point in the future, then you might want to consider buying Starlock blades for your current tool, that way you will be able to use them later on when you buy a Starlock mount equipped tool.
S**O
Accurate blade with narrow kerf
Bosch generally makes good stuff, so I expected good performance when I bought these. I've had other Bosch blades in the past and have been very satisfied with them. I use a Harbor Freight oscillating tool (which I like) and on a day when I was feeling particularly cheap I bought a bunch of cheap Harbor Freight blades to use on a project. Yuk! The new Harbor Freight blades were dull by comparison with the Bosch ones, and they cut a jagged kerf twice as wide with double the effort. When I went back to Bosch, they seemed obviously sharper, cut with a kerf half as wide and involved significantly less effort per cut. You get what you pay for.
P**T
Bosch
Great price for Bosch blades
E**E
Worth the extra money
I love my Bosch tool. I’ve tried cheaper no name universal blades…who wouldn’t….Bosch blades are pricey. But I’ve learned my lesson. The cheap universals just fly off the tool during use. Not safe. These star mounts stay put until I take them off.
J**S
Top product en uiteraard weer top service van Amazon
L**C
Très bon prix
J**N
They work amazing. Awesome quality for an awesome price.
P**E
Great product, curved blade cuts much quicker than normal straight blade, much, much cheaper than I can buy locally.
L**S
Just what I wanted thanks excellent delivery service thank you very much
Trustpilot
1 week ago
2 days ago