This Park-Tool SR-18.2 combination chain whip and freewheel/lock-ring remover wrench is heat treated to prevent bending and flexing and has a moulded handle for comfort.
. Works on 1/8" fixed gear sprockets and single speed cassettes
. 1" (25.4mm) box-end wrench fits Park Tool Freewheel/Cassette Lock-ring Tools
. Features hardened pins to keep the chain in place