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

Product ID: 278533175

Details

Brand
Oumers
Load capacity
7E+2 lbf load
Material
Metal Plastic
Recommended uses for product
Maintenance of
Specification met
ANSI B29.1

👜Compact, portable design

🔧Universal 7-10 speed chain compatibility

🛠️Premium steel backup pin for durability

€ 65.72

Duties & taxes included

In stock

Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

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

COMPACT TRAVEL READY - Lightweight and pocket-sized for on-the-go bike maintenance anywhere.
ERGONOMIC RUBBER HANDLE - Comfort grip handle ensures effortless chain repairs without hand fatigue.
PREMIUM STEEL DURABILITY - Built with high-grade steel and a stainless backup pin to resist bending and wear.
PRECISION CHAIN PIN REMOVAL - Fine-thread mechanism enables smooth, accurate pin removal and installation every time.
UNIVERSAL CHAIN COMPATIBILITY - Fits 7, 8, 9, and 10-speed bike chains for ultimate versatility.

The Oumers Universal Bike Chain Tool is a compact, durable repair essential designed for 7 to 10-speed bicycle chains. Featuring premium steel construction, a stainless backup pin, and an ergonomic rubber handle, it ensures precise chain pin removal and installation. Perfect for road and mountain bikes, this tool combines portability with professional-grade performance to keep your ride smooth and ready.

Specifications

ASIN	B0179JC31I
ASIN	B0179JC31I
Best Sellers Rank	#35,490 in Sporting Goods ( See Top 100 in Sporting Goods ) #106 in Bike Shop Tools
Brand Name	Oumers
Customer Reviews	4.4 4.4 out of 5 stars (10,231)
Customer reviews	4.4 4.4 out of 5 stars (10,231)
Date First Available	13 January 2016
Is Discontinued By Manufacturer	No
Item Length	57 Inches
Load Capacity	7E+2 lbf (working load capacity)
Manufacturer	Oumers
Manufacturer	Oumers
Manufacturer reference	M3040
Material Type	Metal, Plastic
Number of Items	1
Part Number	M3040
Product Dimensions	15.24 x 12.7 x 15.24 cm; 130 g
Recommended Uses For Product	Maintenance and repair of bicycle chains
Specification Met	ANSI B29.1
Strand Type	Single
Tensile Strength	3500 Pounds Per Inch
UPC	840586112915 840586112045
Unit Count	1.0 Count

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