Use with a 3/8" driver
Inside diameter is 24 mm
Designed to fit oil filter and clutch hub on many Honda models (single- and twin-cylinder machines)
Fits most pre-78 CB, CL, CT, SL and XL models, XR200 80-84, XR200R 81-94, XR250L 91-94, XR250R 86-94 and GL1000 75-77