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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Oumers Universal Bike Chain Tool, Road & Mountain Bicycle Chain Breaker & Installer Kit, Chian Splitter Repair Kit

Product ID: 20135318

Details

Brand
Oumers
Load Capacity
7E+2 lbf load
Material
Metal Plastic
Strand Type
Single
UPC
840586112915

🎒Compact & portable for trail-ready repairs

🔧Universal 7-12 speed chain compatibility

🛠️Durable metal frame with rubber grip

€ 17.89

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔩 Fix your ride anywhere, anytime — because every second off the trail counts!

BUILT TO LAST - Heat-treated metal frame delivers high strength and flexibility for long-term use
UNIVERSAL FIT - Compatible with most 7-12 speed road and mountain bike chains
USER FRIENDLY DESIGN - Integrated chain hook and clear instructions make chain breaking and installation intuitive
EFFORTLESS CHAIN REPAIR - Unique groove design ensures precise pin removal every time
TRAIL READY PORTABILITY - Compact size fits perfectly in any bike toolkit or backpack

The Oumers Universal Bike Chain Tool is a robust, heat-treated metal chain breaker and installer designed for 7-12 speed road and mountain bike chains. Featuring a rubber-coated grip for anti-slip handling, a unique groove for precise pin control, and a compact, portable design, it’s perfect for both home workshops and on-the-go repairs. Trusted by over 10,000 riders with a 4.5-star rating, this tool combines durability, ease of use, and universal compatibility to keep you riding without interruption.

Specifications

Asin	B0179JC31I
Best Sellers Rank	#6,500 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #7 in Bike Shop Tools
Brand Name	Oumers
Customer Reviews	4.5 4.5 out of 5 stars (10,570) 4.5 out of 5 stars
Load Capacity	7E+2 lbf (working load capacity)
Manufacturer	Oumers
Material Type	Metal, Plastic
Number Of Items	1
Part Number	M3040
Strand Type	Single
Unit Count	1 Count
Upc	840586112915 840586112045

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TrustScore 4.5 | 7,300+ reviews

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