The Park Tool Compact Universal Crank Puller (CWP-7) will allow you to remove square taper & splined crank arms.
This workshop quality tool has a swappable rotating tip that smoothly presses the crank arm from the BB spindle.
Making this tool with extra fine threads provides the needed leverage to remove even the tightest cranks.
You will however need to combine this tool with an adjustable wrench to get the job done!
Park Tool Compact Universal Crank Puller (CWP-7) features & specs
SMALL SWIVEL FOOT
Compatible with systems that use an M8 x 1.0 threaded crank bolt, including:
- Square taper
- SRAM PowerSpline
- BNI cranks for Bosch®e-bike systems
LARGE SWIVEL FOOT
Compatible with systems that use an M12 x 1.0 or M15 x 1.0 threaded crank bolt, including:
- Shimano® Octalink®
- ISIS Drive
- ISIS Overdrive systems
NOTE: The CWP-7 is designed for crank arms with M22 x 1.0 extractor threads. Crank arms found on some fitness equipment use nonstandard extractor threads and are not compatible with Park Tool crank pullers. Check with the equipment manufacturer for tool recommendations.
For instructions on how to use this crank puller, check out this PDF from Park Tool.