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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🔩 Break Chains, Not Your Flow — The Ultimate Bike Repair Sidekick!

UNIVERSAL COMPATIBILITY - Works seamlessly with 7, 8, 9, and 10-speed bike chains—road or mountain.
EFFORTLESS CHAIN REPAIR ANYWHERE - Compact, portable design fits perfectly in your trail toolkit for on-the-go fixes.
ERGONOMIC GRIP FOR MAXIMUM CONTROL - Rubber-coated handle ensures anti-slip comfort during every repair.
PRECISION PIN BREAKER WITH VISUAL GUIDE - Unique groove lets you see exactly how far the pin is pushed for flawless chain splitting.
BUILT TO LAST WITH HIGH STRENGTH MATERIALS - Heat-treated metal frame delivers durability and flexibility for professional-grade repairs.

The Oumers Universal Bike Chain Tool is a compact, durable chain breaker and installer kit designed for 7 to 10-speed road and mountain bike chains. Featuring a heat-treated metal frame with a rubberized grip and an integrated chain hook, it offers precision and comfort for quick, on-the-spot repairs. Its unique groove design provides visual feedback for accurate pin removal, making it an essential tool for cyclists who demand reliability and portability.

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Item Package Dimensions L x W x H	4.88 x 3.27 x 0.75 inches
Package Weight	0.13 Kilograms
Item Dimensions LxWxH	6 x 5 x 6 inches
Brand Name	Oumers
Material	Metal, Plastic
Manufacturer	Oumers
Part Number	M3040

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

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