Bottom Bracket Removal And installation ToolMaterial: Aluminum Alloy/Stainless SteelNet Weight: Entry 689.5g/Professional 786.7gFunction: Disassemble And Install The Bottom Bracket Bearing And Shell.Applicable Press-In And Disassembly Bearing Specifications:6805 (25X37X7) Bearing6806 (30X42X7) BearingPress-In Type BB R92/T86R30 (BB30 To BB24 Converter)Static Press-In And Removal Of PF30, Bbright, Bb386 And Other Bottom Brackets (Sram's Pf30 Special Bottom Bracket)Can Be Used For The Removal And Installation Of Press-In Bottom Brackets Such As BB86, BB30, BB91, BB92, PF30, Etc.Almost All Common Hollow Threaded Bottom Bracket Bearings And BB86, BB30, Bb91, BB30 To 24, BB92 Can Be Disassembled. Installation And Disassembly Of The Press-In Bottom BracketSuitable For a Variety Of Press-In BB Bottom Bracket Specifications, As Long As This Group Is Installed And Disassembled, All Needs Can Be Met (The Headset Is Prohibited From Being Pressed In)Part Of The Aluminum Sleeve Press-Fit Type Bottom Bracket May Have The Problem That Only The Bottom Bracket Bearing Can Be Removed When Disassembling. Because The Force Of The Tool Is On The Bearing, The Aluminum Sleeve Bottom Bracket May Cause The Bearing To Come Out First, And The Aluminum Sleeve Still Caught On The Frame, And The Outer Edge Of The Bottom Bracket Is Parallel To The Edge Of The Frame Bottom Bracket. Because The Tool Cannot Be Fixed At The Bottom Bracket, The Static Pressure Tool Cannot Be Used.There Are Two Configurations (Starter Version/Upgrade Version)Difference: Most Of The Accessories Are The Same. The Entry Version Has All The Functions Of The Upgraded Version. The Upgraded Version Uses a Stainless Steel Handle. The Force Will Be More Stable During Installation, The Bearing And The Shell Will Be Evenly Stressed, And The Feel Will Be Better.