Bicycle Mountain Crank Puller for square tapered crank sets; removes chainrings and crank arms safely Material and construction Made of hardness carbon steel for durability Some parts plated with nickel for enhanced corrosion resistance and long life Bottom Bracket Remover Designed to remove multi speed freewheels and other tower wheels on mountain bikes and road bikes Built to handle standard maintenance tasks on diverse bike setups Bike Chain Breaker Used to remove and install chain pins and perform common work Compatible with all common bicycle chains Key benefits Versatile tool set that covers crank, bottom bracket, and chain maintenance in one kit Durable construction with hardness and nickel plating for reliable performance under regular use Clear compatibility across common bicycle components and chains, reducing the need for multiple tools Use scenarios Scenario 1: Replacing a chainring or crank on a bike with a square tapered crank set Scenario 2: Servicing a mountain or road bike by removing a multi speed freewheel or other tower wheel Scenario 3: Repairing a chain by breaking or installing chain pins on typical bicycle chains Specifications and performance highlights Function: crank removal, bottom bracket and freewheel/tower wheel removal, chain pin manipulation Compatibility: square tapered crank sets; multi speed freewheels and other tower wheels; all common bicycle chains Material: hardness carbon steel with nickel plating on selected parts Application: suitable for maintenance and tasks on mountain bikes and road bikes