Specifically designed for bicycles with square-taper crank interfaces - This tool is intended to remove locknut assemblies and related components found on square-hole bottom brackets, making it easier to service cranks and BBs without damaging parts. Made from carbon steel - Strong, durable construction that stands up to regular use. - Rust resistant to help prolong tool life in workshop conditions. Broad compatibility for common sizes and openings - Suitable for 44-48 mm retaining rings and nuts. - Supports 36 mm openings and 16 mm openings, as well as grooves found on compatible parts. Essential tool for bottom bracket removal - A necessary wrench for removing bottom brackets on bicycles, helping to safely disassemble cranksets and related hardware. Key benefits and why you need it - Improves leverage and control when loosening locknuts and retaining rings. - Durable carbon steel construction provides reliable performance over time. - Versatile compatibility with common sizes reduces the need for multiple tools. Practical use scenarios - Scenario 1: Servicing an older bicycle with a square-taper crank; use this tool to remove the locknut and access the bottom bracket for replacement or maintenance. - Scenario 2: Working on a bike that uses 44-48 mm retaining rings or nuts; this tool helps remove these components without damage. - Scenario 3: General home or shop maintenance where an all-purpose bottom bracket removal tool is preferred, thanks to its 36 mm and 16 mm openings and groove compatibility.