will this break the chain where i cant use it again cuz i need to replace my derlailer

First! If you are replacing a derailleur you should replace the chain because the old chain has stretched and adjusting the new derailleur will be difficult to get the right shifting of gears. However do not push pins out and reuse or use kmc quick links

Will this work on 11 Speed Chains

8 speed and 11 speed chains mainly differ in the thickness for the link plates. 11 speed chains need more clearance and are thinner to provide that. So an 11 speed chain should break easier than an 8.

Is this product made in the U.S.A?

this bike chain tools is made in china.

Once you screw in new pin will this tool clip off new pin tip while still attached ? how

I only did one link for a test. I broke off the tip with a pliers. Far as I know the tool does not do that job.

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🔩 Fix your chain like a pro—anywhere, anytime!

BUILT TO LAST - Heat-treated high-strength metal frame delivers durability that keeps up with your ride.
SECURE HANDLING - Rubber-coated metal frame offers anti-slip grip for comfortable, confident repairs on the go.
EFFORTLESS CHAIN REPAIR - Unique groove design ensures precise pin removal and easy chain reassembly without guesswork.
TRAIL READY PORTABILITY - Compact, lightweight design fits perfectly in your toolkit for quick roadside fixes.
UNIVERSAL COMPATIBILITY - Works seamlessly with 7, 8, 9, and 10-speed bicycle chains—road or mountain.

The Oumers Universal Bike Chain Tool is a durable, compact repair essential designed for quick and precise removal and installation of chain pins. Featuring a rubber-coated grip and integrated chain hook, it fits common 7 to 10-speed bicycle chains, making it perfect for both road and mountain bikes. Its heat-treated metal frame ensures long-lasting strength, while the unique groove design simplifies chain maintenance on the trail or at home.

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AR$67886

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Manufacturer	Oumers
Part number	M3040
Item Weight	130 g
Product Dimensions	15.24 x 12.7 x 15.24 cm; 130 g
Manufacturer reference	M3040
Color	Chain Repair Tool
Material	Metal, Plastic
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

Oumers Universal Bike Chain Tool With Chain Hook - Road and Mountain Bicycle Repair Tool, Splitter Cutter Breaker for Removing and Installing

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